Is there life on Mars? We haven't discovered life on Mars, but we have found lots of evidence that it could have supported life in its past. There’s even a chance that Mars could be habitable under the surface. NASAAstrobio expert Heather Graham explains.
The Mars Exploration Program studies Mars as a planetary system in order to understand the formation and early evolution of Mars as a planet, the history of geological processes that have shaped Mars through time, the potential for Mars to have hosted life, and the future exploration of Mars by humans. The strategy has evolved as we have learned more about Mars and as more questions have arisen. We have gone from “Follow the Water” to “Explore Habitability” to “Seek Signs of Life.
Scientists think that Mars may have had a thicker atmosphere early in its history, and data from NASA spacecraft indicate that Mars has lost significant amounts of its atmosphere through time. The primary culprit for Mars’ atmospheric loss is the solar wind!Astrobiology is a relatively new field of study, where scientists from a variety of disciplines work together to understand the potential for life to exist beyond Earth.
The field of Astrobiology saw a resurgence due to the controversy surrounding the possible fossil life in the ALH84001 meteorite, and from the outsized public response to this announcement, and subsequent interest from Congress and the White House,Also at this time, NASA’s Mars Exploration Program began to investigate Mars with an increasing focus on missions to the Red Planet. The
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