Friday, May 18, 2012

Dragon takes flight tomorrow! 05.18.12



SpaceX, a commercial spacecraft company, will make history tomorrow if all goes as planned. It will become the first private company to launch a commercially designed and built spacecraft to dock with the International Space Station. Dragon (a wonderful name with an even better logo, we think), should launch tomorrow, May 19, at 4:55 a.m. EDT from Cape Canaveral, Florida. The mission is primarily a safety test. NASA and SpaceX will both offer live coverage of the launch.
http://www.spacex.com/downloads/COTS-2-Press-Kit-5-14-12.pdf

Read more from SpaceX.
Read the official Dragon press kit.
Read the original story from SPACE.com.



Friday, May 11, 2012

A Super Discovery, 05.11.12


NASA’s Spitzer Space Telescope has made another monumental discovery: a “super-Earth.”
Twice as big as Earth, the super-Earth is, for now, called 55 Cancri e, and is situated in the constellation Cancer, about 41 light years away. For the first time, scientists were able to actually measure the light emanating (reflected) from the planet itself, instead of measuring how much light it blocks as it transits in front of its star. Because of the low measure­ments that were taken, scientists guess that the planet is probably very dark most of the time. It appears to be tidally locked, though (one side is stuck facing its star), and that side appears to have temperatures in excess of 3,000 Fahrenheit. Just so we’re clear on how hot that is, most kinds of metal will be liquid at that temperature.
Based on their observations, scientists are saying the planet most likely has a rocky core and is covered with water. Be­cause of the extreme heat on the sunny side, however, the water is probably in a “supercritical” state, where it exists as both liquid and gas. NASA claims the atmosphere is covered with steam. Regardless, the atmosphere appears to be very thin, as it is doing such a poor job of blocking its sun’s heat.
Based on all observations made at this point, the planet cannot support life.
Read more from NASA.

Saturday, May 5, 2012

Hungry, Hungry Black Holes 05.05.12


A black hole has been caught with its hand in the cookie jar, so to speak. Researchers with the space-based Galaxy Evolution Explorer (GALEX) have discovered a black hole actually in the act of consuming a nearby star.
CREDIT: NASA, S. Gezari (The Johns Hopkins University, Baltimore, Md.), A. Rest (Space Telescope Science Institute, Baltimore, Md.), and R. Chornock (Harvard-Smithsonian Center for Astro­physics, Cambridge, Ma.)

It all started out in such a normal way— no one ever suspected the black hole was capable of doing such a heinous thing, and then blam! All that remained was crumbs.
No, that’s not really how it started. In a way, the star itself is almost to blame for its demise. The victim is a star that ap­pears to be going through a major life change, of a sort. The star appears to have been going through its red star phase, and was in the process of swelling to 100 times its original radius. The star only made it a third of the way out, however, before the nearby black hole’s tremendous gravity began stripping off some of the gasses from the edge of the star. Based on the spectrum of the gases, researchers say the star was mostly composed of helium. The researchers with GALEX have made this nifty little computer simulated representation to let us know sort of what it would look like: http:// www.space.com/15512-black-hole-devours-star-139-days-stellar-devastation-animated-video.html.
So, why is this important? Well, for once, researchers can watch a black hole in the act of “eating” something substan­tial. Black holes are completely invisible to us— we have no technology that is capable of seeing them— all we can see is the carnage they leave behind. By watching some poor star get sucked into one, though, we will have a much better under­standing of how black holes function and “look.”
Read more from SPACE.com.

Friday, April 27, 2012

Help wanted: Moon Mappers


Have you ever wanted to make a contribution to astronomy, but felt helpless because you did not have any good equipment for deep space observation? Not to fear! Moon Mappers needs your help.
An initiative by Cosmo Quest, the project is to attempt to map out at least 1,000,000 craters on the surface of the moon before May 5th.
Credit: Moon Mappers
Now, it may sound kind of silly to think of going about counting holes in the ground (even if it is on another world), but believe it or not, craters yield a lot of information when studied closely. More and more, scientists are discovering that craters are often sheltering harbors for ice and other frozen chemicals, which would otherwise melt and be evaporated if they were not hidden in shadow. Chemical samples from inside the craters also provide clues as to what sort of things have bombarded the moon in the past.
What’s more, Cosmo Quest has made it easy. They have managed to partner with NASA and obtain some high-resolution photos from the Lunar Reconnaissance Orbiter (LROC), so all you have to do it properly mark out craters that appear to be about 1 meter in diameter on the photos. Sound simple? “There are literally millions of craters at that size,” says Dr. Pamela Gray, who is leading the Cosmo Quest project. This is so much more than a preschool counting exercise.
So, who’s up for adding some “lunar cartography” volunteer experience to their résumé?

Friday, April 20, 2012

Discovery headed to the Smithsonian, 04.20.12

Space Shuttle Discovery is on its way to the public eye at the Smithsonian. Earlier this week, the space shuttle was spotted hitching a ride to its new home on the back of a specialized 747 aircraft (pictured below).
Image Credit: NASA/Smithsonian Institution/Harold Dorwin
Yesterday, April 19th, the Discovery "attended" a ceremony (pictured below) where it traded places with space shuttle Endeavour at the Smithsonian's Steven F. Udvar-Hazy Center. According to NASA, Discovery will soon be on display at the Smithsonian Institution's Air & Space Museum.
Image Credit: NASA/Smithsonian Institution/Carolyn Russo


Friday, April 13, 2012

Good visibility for Lyrids 2012, 04.13.12


Did you ever sit at your window as a child and marvel at “shooting stars” as they streaked across the night sky? Those were actually meteors passing across Earth’s atmosphere. Sometimes, Earth passes through fields of debris in space that cause regular, predicted “showers” of meteors. In April, we have one such shower: the Lyrids.
(NASA/MSFC/Danielle Moser)

Named after the constellation Lyra, the harp (the meteors’ apparent radiant point, or origin), the meteor shower is caused by detritus left in the wake of Comet C/1861 G1 Thatcher. Comets have a nasty habit of leaving trails of dust and ice be­hind them as they course through the sky. When Earth passes through the trails, the debris scrapes across the top of our atmosphere, glowing with the energy from the friction that is generated.
This year, the Lyrids meteor shower will take place next Satur­day evening, on the night of April 21-22. You can expect to see meteors from about 11:00pm until 5:00am. The Lyrids are al­ways very predictable, averaging about 15 meteors per hour. Peak hours could generate as many as 10-100 meteors per hour, though, according to NASA.
The moon will also be cooperating with us this year to offer the best show possible. Luna will be in her new phase around the 21st of April, so the skies will be much darker, making it easier to spot the tiny, brief streaks of light.
Do not be worried about where in the world you are at the time, either. As long as you are not surrounded by bright city lights and light pollution, you should be able to see the shower from anywhere in the world.
Read more at NASA.

Monday, April 9, 2012

Seeing the Invisible, 04.05.12


If you have ever paid a visit to the Wetherbee Planetarium here at Thronateeska Heritage Center, chances are you have heard a good deal about our film, “Black Holes: The Other Side of Infinity.” In the film, all manner of evidence is put forward about the existence of a black hole in the center of our Milky Way Galaxy. The film describes research done at the Keck Telescope in Hawai’i, where several stars have been recorded orbiting in a very strange manner around...something...at the center of the Milky Way.
SPACE.com, today (04.05.12), published more information detailing re­cent studies on this supposed supermassive black hole at the center of the Milky Way. Telescopes have yet to reveal it. With the technology we have now, we simply cannot see anything there. Plans are in the works for bigger and better detection methods, but for now, the area known as Sagittarius A* (pronounced Sagittarius A-Star) seems to be a great big empty space of nothingness that somehow manages to make some stars orbit around it at mind-blowing speeds of over 3,000 miles a second.
CREDIT: Alain R. | Wikimedia Commons 
Astronomers know that something has to be there. Analysis shows that something packing more than 4 million times the mass of our own sun is there, yet it still cannot be seen. It does emit some radio waves, but aside from that, there is not much else to go on. Much research remains to be done to know for sure about this monster at the center of the Milky Way. One thing is certain: whatever it is, it is proving to be one great big mathematical migraine.
Read more from SPACE.com.

Friday, March 30, 2012

Snowing Microbes


Of all the places in our solar system (besides Earth) that are most likely to harbor life, none is better than Enceladus, Sat­urn’s sixth largest moon. Although extremely cold, it has been recording spouting geyser-like plumes of liquid water high into the air. Enceladus is one of only a few other places in our solar system with recorded geologic activity.
Although it is so very cold on Enceladus, that does not have researchers worried, because we have life here in our arctic oceans on Earth.
The lucky thing about the water being sprayed into the air also means that the probes that have been sent to Enceladus do not even need to land! All they have to do is fly through the spray to gather their samples and analyze the liquid. With the envi­ronment being so cold, however, all of the spray is probably being frozen into snow in the atmosphere. 
There are also concerns that perhaps the oceans are far too acidic to support life, but again, it may be possible for mi­crobes to survive in such conditions.
Microbes, are, in fact, what the researchers are looking for; millions of microscopic bacteria and other organisms that live just about everywhere here on Earth. As the water is likely being spurted from the oceans beneath the frozen surface of the planet, any life held within them would be blown up into the atmosphere in the geysers.
Read more from SPACE.com.

Saturday, March 10, 2012

Solar Flares, 03.08.12


It seems like everyone is buzzing about solar flares. We even had a bit of a scare this morning with our power cutting out a few times. Are the flares really to blame, though? Let us take a look.
Credit: NASA/SDO.
Solar flares are a sort of burp created by a star when energy concentrates and bubbles in one place, eventually erupting out in a CME, or Coronal Mass Ejection. CMEs send out massive amounts of magnetic, radio, and radiation emissions. In ex­treme cases, solar flares have caused interruptions in commu­nications and blackouts. Just last year, solar storms made communications for some airplanes and ships difficult over some parts of Alaska and the Pacific. With genuine CME-caused damage, though, the effects are usually very widespread, and last longer than just a power outage of a few minutes.
Do not get us wrong, there is an honest to goodness major so­lar storm going on right now. Spaceweather.com has some excellent photos and footage of it. Sunspot AR1429 has been spewing some major emissions, and scientists have been ex­pecting this. The spot has been tracked ever since last month when it was on the far side of the sun, even then creating spikes in energy readings.
Scientists have known for a long time these flares were com­ing, and in fact, some have even been let down. Some are say­ing the flare is actually weaker then they had expected.
So, what does this all mean for us? For one, the classic line “do not panic.” We are all still here, and we are not likely to be plunged back into the dark ages. For another, it is not likely that the power outages experienced around town today can be blamed on this flare. Solar flares are the rock stars of outer space. They do major, widespread damage when they come to town, and we just are not seeing that with this flare. Most likely the power outages were caused by overheating and burn­out in our local power grid. Lastly, auroras: there is a very slim chance you could see some sort of aurora activity in the night sky. We make no guarantees, though. Most likely, those people further north would be able to see it better. If you want to give it a shot, though, travel out into the country tonight and look towards the northern sky. You may be able to see the greenish opalescence of the auroras, commonly known as the “northern lights.” If you do, send us a picture! We will be keeping our eyes peeled, too.
Read more from Spaceweather.com.
Read more from SPACE.com.

Friday, March 2, 2012

Life on Europa: a soda ocean? 03.02.12


Of all of the other places in our solar system, one of the most promising locations for extraterrestrial life has been Jupiter’s icy moon Europa. Completely covered with ice on the surface, researchers believe Europa harbors an ocean of liquid water at least 100 miles deep, which leads down to a rocky interior and a solid core of some type, most likely metal. Surface studies on the moon have yet to be conducted, however, so the re­searchers have no idea how thick the icy crust on the outside of the planet may be.
Credit: NASA.
While the possibility of an ocean of liquid water is more than enough to be excited about, some researchers are beginning to doubt whether or not life as we know it would be able to thrive on the chilling planet. What research has been done on the planet is beginning to lead the scientists to believe that whatever water is there would be highly contaminated by extremely acidic chemicals. There is some speculation that it is possible the acidity could be balanced out by more basal minerals at the ocean floor, but again, it is all speculation.
There are a few places on Earth where some microbes and other life forms thrive in highly acidic environments, but those areas are few and far between. So, the likelihood of life sur­viving on an entire planet like that? Very slim.
Without the bases and minerals at the ocean floor to balance out the pH, though, the researchers say the ocean would have moderately corrosive characteristics, “about the same as your average soft drink,” except it would be more along the lines of hydrogen peroxide than a cola. Swim time, anyone?
Information credit: SPACE.com.

Tuesday, February 28, 2012

Calling All Thrill Seekers: Microgravity Experience? 02.24.12


For those that enjoy riding roller coasters, it is a very big deal to find the biggest, fastest, and most exciting ride possible. What if you had the opportunity, even for just a few seconds, to ride a roller coaster that would give the same sensation as floating in outer space’s microgravity? We have to wonder if even those with sensitive stomachs would pass up an opportunity like that.
The idea comes from BRC Imagination Arts, a design firm in Southern California. They are putting together plans for one of the most sophisticated roller coasters in the world. The term “roller coaster” is a gross understatement for this monster, however. Because of the extremely precise calculations needed to give the maximum sensation, the ride will be meticulous enough to weigh and recalibrate the controls for every single flight of its passengers, even as the ride is in progress.
The ride is expected to give its passengers the feeling of one-g, zero-g, and then double Earth’s gravity through the duration of the trip. The microgravity sensation would be for about 8 seconds at the top, which, BRC claims, will feel like an eternity in the enclosed space of the ride.
What is more, the ride has researchers excited because it could offer a much cheaper alternative for testing experiments in zero gravity. NASA’s current “Vomit Comet,” the KC-135A aircraft used to simulate zero gravity for astronauts in training, is a very costly trip to take. When the zero gravity contraption is built, though, even grade school students can run experiments while they ride the coaster. Who says science cannot be fun, too?
Information credit: SPACE.com.

Saturday, February 18, 2012

A Shot in the Dark, 01.18.12



How do you look for something if you do not know what to look for? This is a challenge being laughed in the face by scientists at the Kavli Institute for Cosmological Physics in Chicago. The team there will be spending the next five years trying to answer some of the biggest questions about the three main problems in astronomy: dark energy, dark matter, and cosmic inflation.
Why try to find out about these things, you ask? Well, based on a dizzying amount of calculations done by astronomers and other scientists through the decades, it was determined that there is a lot more “stuff” in outer space than what can be seen. What is more, some of those scientists have a sneaking suspicion that the sleuths they are looking for do “not consist of quarks, neutrons, or protons.” A little review here: neutrons and protons are both parts of atoms, and quarks are the things that make up the parts of atoms. Basically, the scientists were looking for things so small that they could not be seen with the naked eye, but now they are beginning to think that their best guesses were not on track anyway.
Astronomers also know the Big Bang Theory leaves something to be desired as it has no answer for cosmic inflation. So, hopefully getting some more answers could even change what astronomers think about the Big Bang Theory itself.
So, when someone does find the answer, rest assured it will be something never before seen in history.
Information credit: The University of Chicago.
Read more about quarks: The Particle Adventure.
Want to talk with us about discoveries like this? Be sure to come to our MARCH 20th Astronomy Series show in the Wetherbee Planetarium.

Monday, February 13, 2012

Hungry, Hungry Black Holes 02.10.12


Black Holes have a way of “eating” anything that gets re­motely close to them. In astronomical terms, we are talking about 100 million miles away or less.

It turns out, these pesky over-eating habits seem to be the answer for some questions regarding recent flares from the gigantic black hole at the center of Sgr (Sagittarius) A*. Closer studies seem to reveal that the black hole is surrounded by a cloud of asteroids and other detritus that is continually swept into its path. As it gets close, it gets torn to pieces by the black hole, and this friction makes the pieces heat up and glow, much like a meteor in our atmosphere, NASA says. A flare is produced as an astronomical burp of sorts, and the cycle of destruction continues.
Image credit: NASA/CXC/M. Weiss.


This is no baby with its first birthday cake, though. Far from it, actually. Needless to say, this monster at the center of our galaxy is getting a lot of attention.

Information credit: NASA

Monday, February 6, 2012

No Doubt: a Super-Earth in a Habitable Zone, 02.03.12


Humans have wondered throughout history if there is life out­side of Earth. Is it possible for it to exist elsewhere? Could there really be planets hundreds and thousands of light years away that have their own life forms on them? It is very difficult to tell.
One of the first criteria astronomers say a planet must meet is to be in the habitable zone (or, life zone) of the star around which it orbits. This is a region that is determined based on the size and temperature of the star, which would render the temperature on the planet at a happy sort of medium. It would not be so hot that everything would dry out and die, and it would not be so cold that it would become a frozen world. Hundreds of planets have been discovered outside of our own solar system, and some of them seem promising, but until now, there has always been a margin of doubt. Most of the planets discovered either missed the mark entirely or were situated just on the fringe of their life zone. A study led by the private nonprofit research organization, the Carnegie Institu­tion for Science, happened to stumble across one particular planet that leaves no doubt about its orbit. Meet GJ 667Cc.
CREDIT: Carnegie Institution for Science
This particular planet has been termed a “super-Earth” be­cause it is about 4.5 times as massive as our own planet. The gravity there would feel greatly multiplied compared to that on Earth, but there is no doubt that this terrestrial planet is smack in the middle of its habitable zone. It is situated rela­tively close by in the constellation Scorpio, about 22 light-years away.
One other interesting fact about the planet that is leaving as­tronomers puzzled is it is in orbit around a triple star system, all of which are lacking heavier elements typical of stars with their own solar systems. GJ 667Cc only orbits one of those stars, but it would still be rather odd to see three in the sky, we think.
Information credit: SPACE.com

Friday, January 13, 2012

160,000,000,000 Milky Way Planets? 01.13.11


Have you ever played the party game where you try to guess how many candies were in a jar? You would look at the size of the candies, the size of the container, and try to visualize how many could fit in the space. Now, put that on a galactic scale.

Astronomers use math, not guessing, when trying to determine the number of the planets in our galaxy. There is not much guessing to this at all, really. There is, however, a great deal of calculations and observations. For years, scientists have been trying to track down planets elsewhere in our galaxy  using the “transit method” and “radial velocity.” The transit method measures light from distant stars. If the readings from the planet show regular dips in light, that indicates an object passing in front of the star at regular intervals, which, to cause such a measurable dip, must mean a planet in orbit. The radial velocity method measures how much stars “wobble” because of the pull of the planets in orbit around them.

A new observation method is being employed that is not so biased towards close-orbiting planets, called gravitational  microlensing. According to SPACE.com, microlensing measures how light is magnified and bent by gravitational fields from distant bodies. Based on the researcher’s calculations, they estimate at least 1.6 planets per star in our galaxy, in orbits from their stars roughly the same orbital range of Venus to Saturn from our own sun.

Based on that estimate—1.6 planets per star—and their estimate of about 100 billion stars in the Milky Way, that comes out to quite a few planets. When we here at the    Wetherbee Planetarium start to think about how many galaxies are estimated to be in existence in our Universe—100 trillion—it is mind-boggling to try to comprehend how many planets may be in existence outside our tiny little terrestrial world.
An artist's impression of the prevalence of planets in our galaxy.
CREDIT: ESO/M. Kornmesser


Information credit: SPACE.com

Friday, December 30, 2011

Top 11 in 2011, 12.30.11


2011 has been a tremendous year for astronomy. It has been a marvelous year for discoveries, yet we look forward to the future as the space program evolves to continue without the space shuttles. Here at the Wetherbee Planetarium, we would like to take a moment to reflect on some of our favorite stories we covered this past year.


11. Diamonds in the Sky, originally published 08.29.11. A diamond planet companion was found orbiting J1719-1438. How is that for twinkle?


10. De Blob, it glows!, originally published 08.19.11. Lyman-alpha blob 1 (LAB-1), a giant, intergalactic green blob, was discovered. No one knows what it is, but it is big, it glows, and it is green. We think that is pretty awesome.


9. The sky is falling!, originally published 09.14.11. The Upper Atmosphere Research Satellite (UARS) took a spiraling descent back to Earth over late September-early October, mostly breaking apart and burning in the atmosphere.


8. A Geriatric Non-Planet, Non-Asteroid…Thing…, originally published 04.04.11. The gargantuan asteroid Vesta was visited by NASA’s Dawn mission in July of this year for a photoshoot rendezvous.


7. “Spinstars” May Have Helped Seed the Universe, originally published 05.02.11. Astronomers working with the Very Large Telescope (VLT) theorized the existence of “spinstars,” possibly the fastest rotating objects in the universe.


6. Gamma Ray Flares in Binary Star are a Mystery, originally published 07.07.11. A binary star system in January and February of this year was found emitting gamma ray flares as a companion pulsar grazed through the Be-class star’s gaseous disc.


5. “It’s Alive!” Zombie Satellite Galaxy 15 Springs Back to Life, originally published 01.04.11. Rebellious satellite-gone-rogue Galaxy 15 came to its senses and rebooted after months of failing to respond to commands and joyriding.


4. Life-Friendly Zones in the Galaxy?, originally published 09.30.11. Astronomers theorized the possibility of a “life zone” or area in galaxies that is most likely to support life as we know it.


3. Hubble Celebrates Millionth Observation, originally published 07.12.11. The Hubble Space Telescope made its historic millionth observation of outer space, a spectroscopic observation of planet HAT-P-7b.


2. The Star of Bethlehem, originally published 12.20.10, reprinted 12.20.11. The staff at the Wetherbee Planetarium delved into possible explanations for one of the most iconic symbols of the Christmas season.


1. Launch Week: Last Flight of Space Shuttle Endeavour Scheduled Friday, originally published 04.25.11. NASA set the launch date for the last flight of space shuttle Endeavour, one of the final missions for the shuttle program.


So, what do we expect for 2012? NASA’s Dawn mission will wrap up its study of Vesta, the Russian Phobos-Grunt mission will make its descent back to Earth after its failed launch, Kepler is confident about the odds of finding an Earth-like planet in the life zone, and the biggest non-event: the supposed “alignment with the core of the galaxy” on December 21. Here’s to 2012!

Tuesday, December 20, 2011

The Star of Bethlehem, 12.20.11


Originally published December 20, 2010


Throughout time, one object in astronomy has continually puzzled astronomers. Only one source in all of history has recorded it, yet it has fascinated the faithful and obsessed the scientific. Like history, astronomy is not repeatable, and the truth of the matter can only be postulated from the evidence that remains. The evidence left for scientists to mull over, in this case, is everywhere but on Earth, and the mystery is a “star” that is no more. We are, of course, speaking of the Star of Bethlehem, mentioned in manuscripts included in the Christian Bible, and supposedly occurred over 2,000 years ago in what we now refer to as the Middle East, west of the Mesopotamian region.


Let us establish the context first. As we mentioned before, the Christian Bible contains the only written records of the Star. While there are multiple allusions to a star throughout the Scriptures, there is one section in particular that directly mentions the Star in question: Matthew, chapter 2.
Now when Jesus was born in Bethlehem of Judaea in the days of Herod the king, behold, there came wise men from the east to Jerusalem, saying, “Where is e that is born King of the Jews? For we have seen his star in the East, and are come to worship him”. When Herod the king had heard these things, he was troubled, and all Jerusalem with him. And when he had gathered all the chief priests and scribes of the people together, he demanded of them where Christ should be born. And they said unto him, “in Bethlehem of Judaea: for thus it is written by the prophet, For out of thee shall come a Governor; that shall rule my people Israel.” Then Herod, when he had privily called the wise men, enquired of them diligently what time the star appeared. And he sent them to Bethlehem, and said, go and search diligently for the young child; and when ye have found him, bring me word again, that I may come and worship him also. And when they heard the king, they departed; and, lo, the star, which they saw in the east, went before them, till it came and stood over where the young child was. And when they saw the star, they rejoiced with exceeding great joy. –Matthew 2:1-10
The wise men, or magi, were elite scholars of their day who practically knew the night sky and the movements of the objects in our solar system (that they could see) like the backs of their hands. Most likely from ancient Babylon, the magi used the skies to help them establish a calendar, know when to plant and harvest crops, how to plot navigation courses using them as guides, and more pertinent to this case, how to make predications or divinations about their current events.


Why would an elite group of astrologers (astronomy, the scientific study of space, had its roots in and was still closely entwined in astrology—the belief that our lives on earth are affected by the movements of objects in space—at this point, and would not emerge as a respected science for several hundreds of years) care about the birth of a poor Jewish boy several hundreds of miles away? The answer can be inferred from the Biblical book of Daniel. Hundreds of years prior, the astrologers were still busy reading the heavens and, more importantly, attempting to make predications based on the movements of what they saw. Whether he was attempting to test the wise men or merely gain a clear answer is not certain, but the Babylonian king at the time, Nebuchadnezzar, demanded of the wise men that they interpret his dream. Realizing their inability to do so using on astrology, they had to admit to the king that all they had been telling the king before was a bunch of lies. In a rage, the king commanded they all be put to death. Daniel,
a young Jewish noble who had been brought captive to Babylon intervened and asked the king to give him time. According to the Bible, Daniel prayed to God for an answer, he pleased the king when he provided an interpretation of the dream, and the king made Daniel the ruler of the wise men. It is more than plausible that Daniel would have shared the Jewish prophecies with the wise men about a Messiah, which is probably why they were able to quote the prophecy recorded in the book of Isaiah to king Herod when they arrived near Bethlehem hundreds of years later seeking the Christ child.


It is also important to note, concerning the magi, that it was the significance they attributed to the sign that they sought, not so much the object itself that fascinated them. Most ancient cultures had their own sect of sky watchers (even the general population, on average, had a working familiarity with the night sky). That they had their own, unique significance for whatever it was they had seen is evident in the surprise and dismay that Matthew recorded the king Herod and his scribes having. Had they missed something important? Had they seen the sign and not even recognized it? One can only imagine the hurried conversation that took place between the Jewish scholars and their king before these foreign magi regarding a sign in their own, native skies.


So we know at least that the magi were expecting some sort of sign to herald the coming of the Messiah. Finding Him, though, was another story entirely. The journey from Babylon, where they most likely began, to Jerusalem, where they met with king Herod, as the crow flies, is a journey of a little over 400 miles. That, of course, would take the wise men straight across the middle of a barren wasteland. More than likely, they would have taken a more northerly course following along the Euphrates and then descending through Judaea, stopping from town to town along their way to Jerusalem. This would have been an even longer course. Granted, it is plausible that they could have gone straight through the desert if they had wished—there is no way to know for sure which route they took, whether just a really long route, or a much longer, really long route. The point of this is that it would have taken them several weeks, even if riding, to make it to Jerusalem. That is a very long amount of time to be “following” an object in the night sky.


So what was the star that sent wise men across the desert to bring gifts and worship the Christ child? Let us examine the candidates from an astronomical point of view. From supernovas to UFO’s, comets, a shooting star, supernovas, and a planetary conjunction, none of these fit exactly.


We can dismiss “shooting stars” without a chance. “Shooting stars” are meteors that burn up in Earth’s atmosphere as they fly past our planet. They only last the briefest of moments, and they fall at regular times throughout the year.There would have been nothing remarkable or noteworthy to the magi about just another meteor, or even another meteor shower. Small and only a few seconds in duration each, they were just another sparkly, streaking speck in the sky.


Supernovas can probably be disqualified as well. Supernovas are stars that, for all intents and purposes, explode and end their lives in violent chaos, creating a black hole and emitting a burst of light hundreds of times their normal brightness. While the light from a supernova would have lasted 3-5 weeks at best, the wise men would have had to have made record time to make it to Jerusalem before the light faded. Supernovas also leave behind trace dust clouds that can be seen today with special astronomy equipment, and also many of them have been recorded in history. No mention was made in history of a supernova occurring at this time. The Chinese called them guess stars, and astronomer Tycho Brahe in 1572 made the first scientific records of supernova behavior. The supernova of 1054 AD was recorded by ancient peoples around the world, and is now known as the Crab Nebula in the constellation Taurus the bull. No supernovas are recorded in the time frame surrounding the period during which Jesus was born (somewhere between 8 BC and 4 AD), but then again it is very likely that not all novas and supernovas are recorded. Astronomers have recently discovered that a supernova occurred about 400 years ago that would have been visible in Earth’s southern hemisphere, yet it somehow went without being recorded by a single historian (that they know of). In a period so plentiful with scholars and with such a wide network of communication provided by the Roman Empire at the time, it is curious that no written record of a supernova remains. The absolute lack of such a record makes us more likely to lean towards no such observation having been made in the first place.


As for a comet, that theory is laughable. In this day and age, comets are regarded as something unique and special, especially since some comets only pass by earth once and are never to be seen again. Just a few hundred years ago, however, comets were regarded as something to be feared. How much more so for people thousands of years ago who lacked equipment for their closer observation? Comets were often considered heralds of doom and destruction. Even our own Nelson Tift, one of the founders of Albany, GA, had the opportunity to observe a comet in 1835 and recorded some of the reactions of people around the town in his personal diary. He writes:
I saw the comet this evening about 7 o’clock, I think about west 45 degrees above the horizon…it was asserted by some that it would some so near the earth as to set it on fire! & by others that they would come in contact!
If people not even 200 years ago were terrified at the sight of a comet, how much more might have been the people thousands of years ago. Least of all, comets have tails. The wise men referred to the object they saw as a star, and stars simply do not have tails.


Now for the most plausible theory, but by no means a sure bet: a planetary conjunction. A planetary conjunction including Jupiter and Saturn, next to the star Regulus in the constellation Leo the lion would have been highly steeped in symbolism for the magi. The three of them also would have made a great show, but a conjunction is extremely predictable and the wise men, being very familiar with the course of the planets, would have known it was coming for months. Granted, Jupiter is considered a kingly planet and Regulus, the star, is also associated with kings, but it is a far stretch of interpretation to bring the Greek word used in Matthew chapter 2 for the star, astare’, to mean planet. Several months later the planet Venus and the star Regulus overlap, but that is still just a conjunction. In fact, just to have a better understanding of just what the Matthew meant when he recorded his Gospel 2,000 years ago, let us examine the word he used for “star.” When the book was first written, it was recorded in an ancient Greek dialect. Could something have been lost in translation?


The word he used was άστήρ, which pronunciation we mentioned before is astare’. According to the New Strong’s Exhaustive Concordance of the Bible, a long respected resource by Bible scholars, the Greek word can either literally or figuratively mean a star. According to E.W. Bullinger’s Critical Lexicon of the English and Greek New Testment, there is a very slim chance the word could also mean planet or even meteor, but more digging into the roots of the word itself back in Strong’s lends more insight. According to Strong’s, astare’ comes from the roots of another Greek word, strōnnumi, which relates the idea of “strewing” or spreading something out in a space, which certainly brings up images of the stars laid out across the heavens. That word, in turn, is connected to another word, stĕrĕŏs, which have more connotations of something that is “stedfast, strong,” or “sure.” So, now we know that whatever the star was, we can rest assured it was not some fleeting or flickering object. It was solidly there.


Stĕrĕŏs, Strong’s claims, is connected to another word, histēmi, and its primary word staō, which can be used “in various applications” either literally or figuratively, to mean bide or appoint, among other things.


The last stop is tithēmi, a word tied to histēmi, from the primary word thĕō, with the widest application as an “upright and active position” of placing something. A curious ending, indeed. It would seem that the etymological trail of the word used for “star” in the book of Matthew, at its deepest roots, means that the “star” really was some object that was deliberately placed, as a solid, enduring object, for a particular appointment. This is what the etymology of that particular word for “star” tells us. Science may lead us to believe otherwise.


Despite all of the theories and conjecture, there really is no way to know for sure. Anything is possible, though, whether you favor a scientific theory or just choose to believe in a miracle. One fact
does remain, though: the star has stood for over 2,000 years as a symbol of the coming of the Messiah to people worldwide. That the imagery of stars to Christmas and the subsequent importance that is placed on stars as shining beacons of hope and light in a dark world is undeniable. Perhaps the star is meant to remain a mystery, symbolic in its very nature of the paradox that was the Christ child Jesus, a person fully God yet fully man, ruler of the world born to a poor teenage girl and a carpenter in a stable among the filth and stench of pack animals. A beacon of hope that defies all reason, it is only fitting that it ushered in the single most controversial figure in history.


Information credit: The Bible, E.W. Bullinger (1999), the New Strong’s Exhaustive Concordance of the Bible (2003).

Friday, December 16, 2011

Phobos-Grunt a failure, 12.16.11


Russian aerospace company NPO Lavochkin is expected to make the announcement soon that Phobos-Grunt, an unmanned probe mission to Mars, has failed. The probe launched early last month and its last booster rocket failed to go off, leaving the probe stuck in Earth orbit with a full tank of fuel.

Image credit: thespacereview.com.
The probe’s intended destination was the red planet’s moon Phobos. Its mission was to collect rock and soil samples.

The probe launched early on November 8 of this year. All seemed to be well as it reached Earth orbit, but the last booster rocket failed to fire, which would have propelled the probe out of orbit and on track towards Phobos. Repeated contact attempts have been made to make the last booster rocket fire, but it failed to respond. In its current state, the probe is too dangerous to approach with another vessel to repair it, so the mission is a bust.

Russian officials claim the probe should not pose a threat to humans when it descends to Earth, and say most of it should burn up as it falls.

Information credit: SPACE.com.

Friday, December 9, 2011

Deep space planet confirmed in "life zone," 12.09.11


A planet roughly 2.4 times the size of Earth has been discovered orbiting its star in the “life zone” or “habitable zone.” Found by NASA’s Kepler mission, the planet is in a solar system approximately 600 light-years away.

Image credit: NASA/Ames/JPL-Caltech
The “life zone” is the sort of “sweet spot” around a star that is neither too hot nor too cold for water to exist in its liquid form, and consequently, for life as we know it to thrive on any planets that may be in that region. The star in the system is G-class star, like our own, but a little bit smaller, so the life zone around it is about the same region as the distance between the orbits of Venus through Mars, as illustrated in this diagram here.

The planet, thus far only referred to as Kepler 22b, is almost 2 1/5 times the size of Earth, and orbits its star a bit closer than Earth does, but having passed this first investigatory hurdle, astronomers will be studying it even more closely to try to determine what manner of planet it may be. As of yet, they do not know whether it is terrestrial (made of rock and soil like Mercury through Mars), covered in liquid (like Uranus and Neptune), or composed of gaseous clouds (like Jupiter and Saturn).

Credit: NASA.

Friday, December 2, 2011

Amateur astronomer captures photo of young solar system, 12.02.11


An amateur astronomer in New Zealand has managed to take and clean up a photograph of a new solar system in the works. The stunning part? He was doing it with his own, homemade, 10-inch telescope. That’s some pretty good aim!

The system is Beta Pictoris, 63 light-years away in the southern hemisphere. The system had been photographed a number of years ago by professional astronomers, but the fact that Rolf Olsen managed to first of all find the system, then photograph it and do such a good job that the “circumstellar disc” was visible, is astounding.

The circumstellar disc is the cloud of dust and debris orbiting around the star. Eventually, it should turn into planets and various other satellites. Olsen was able to expose it using a very long, detailed set of instructions that had been published in a study on the system. That he was able to achieve such good results shows again that anyone can make a contribution to astronomy if they wish.

“There certainly could be a lot of interesting things that professional astronomers have missed, that amateur astronomers could clue us in on,” wrote Bryce Croll, an astronomer at the Massachusetts Institute of Technology, in an email to SPACE.com about Olsen’s achievement. So, hang in there, sky watchers! You just might be the next one to have a breakthrough.

Credit: SPACE.com. Image credit: Rolf Wahl Olsen.