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Article: Life on Mars: past, present, and future.
- Article from:
- Journal of the Mississippi Academy of Sciences
- Article date:
- July 1, 2003
- Author:
CopyrightCOPYRIGHT 2003 Mississippi Academy of Sciences. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Mars appears to be a cold, dry, and dead world. However there is good evidence that early in its history it had liquid water and possibly life. The main question in the future exploration of Mars is the search for an independent origin of life on that planet. Ecosystems in cold, dry locations on Earth, such as the Antarctic dry valleys, provide examples of how life on early Mars might have survived and where to look for fossils. Fossils are not enough. We will want to determine not only if life on Mars, but if that life was a separate genesis from life on Earth. For this determination we need to access intact martian life, possibly frozen in the deep old permafrost. It is ...
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Article: Close-up on Mars.(Earth/Space)
Science World;
October 13, 2003 ;
360 words
... ... glimpse the Red Plane in the southern night sky. Earth and Mars orbit the Sun at about 24 kilometers per second ... the Sun and Mars lie on directly opposite sides of Earth). But Earth and Mars only squeeze closest when they align in the part ...
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