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.

Scientists re-thinking theories for life on Mars, 11.04.11

New interpretations of data from NASA and European orbiters are beginning to come together, suggesting that the possibility for life on Mars is not so strong on the surface, but much more promising for the subsurface directly underground.

This interpretation comes after researchers have discovered clay and certain types of minerals in the Martian subsurface. Clay can only be formed through the interaction of liquid water with rock, so finding clay under the surface suggests a much more consistent liquid presence than it does for the surface, which usually only has frozen ice in its craters and at its poles.

Image credit: Geology.com.

One of the minerals that they have discovered that supports their new theories is a rather icky-colored stone called prehnite. Prehnite can only form in areas where the temperature is over 400 degrees Fahrenheit, so the presence of prehnite and the abundant clay in the subsurface suggests the likelihood for strong hydrothermal (hot water) activity beneath the Martian surface.

That being the case, it is not so strange to think about the likelihood of finding life on Mars. Based on earth’s own geothermal and hydrothermal activity, scientists know it is possible for various kinds of life (usually bacteria and all manner of simple microbes) to live in their own environments, underground, away from the light of the sun.

So, is it time to chuck the rovers and reach for a shovel instead? Not necessarily. More research still needs to be done. There is also more than enough evidence left on the surface of Mars for astronomers to know there was liquid water there at times, and there is still plenty of ice left in some places, so the possibility for life is still there. The idea of finding bacteria on a planet puts the phrase “finding a needle in a haystack” to shame, though. Knowing where to look that is the hard part.

Credit: NASA.