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View Full Version : Was Life on Mars Extinguished Prematurely by a Huge Impact?



Fraser
2008-Oct-05, 07:30 AM
We keep sending missions to Mars with the key objective to search for past or present life. But what if a huge impact early in the Red Planet's history hindered any future possibility for life to thrive? Recent studies into the Martian "crustal dichotomy" indicate the planet was struck by a very large object, possibly [...]

More... (http://www.universetoday.com/2008/10/05/was-life-on-mars-extinguished-prematurely-by-a-huge-impact/)

RegisteredUsername
2008-Oct-05, 07:55 AM
Imagine if that didn't happen...
We could have a space race, not to the moon, but out of the solar system!

dhd40
2008-Oct-05, 03:19 PM
We keep sending missions to Mars with the key objective to search for past or present life. But what if a huge impact early in the Red Planet's history hindered any future possibility for life to thrive? Recent studies into the Martian "crustal dichotomy" indicate the planet was struck by a very large object, possibly [...]

More... (http://www.universetoday.com/2008/10/05/was-life-on-mars-extinguished-prematurely-by-a-huge-impact/)

Obviously, dramatic collisions in planetary systems - young or old - are not extremely exotic events. See e.g.:

http://www.spaceflightnow.com/news/n0810/02collision/


"How do planetary orbits become destabilized in such an old, mature system, and could such a collision happen in our own solar system?"

Also, our moon is said to be the result of such an event, some four billion years ago.

From this point of view, asteroid impacts are only peanut-events ! At least, as long as they donīt happen during our lifetime