Algae grown under Mars-like conditions could make bioplastic building materials for structures to harbor life in space.

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

Primitive life forms thrived on Mars around the same time prehistoric life was developing in Earth's oceans -- but the Red Planet's denizens doomed themselves, a new study suggests.

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

Mars is not an easy place to live. The Red Planet is essentially one giant desert with a minimal atmosphere, low temperatures and no liquid water at its surface. But the biggest barrier to life on ...

Data fed into computer models shows that microscopic life forms may once have thrived there -- and may have left behind evidence of their existence. Eric Mack has been a CNET contributor since ...

We may have already encountered Martian life about 30 years ago and accidentally killed it, according to a new analysis of NASA's Viking mission to Mars presented Sunday at a major astronomy ...

Scientists found that Mars' early days would have been the right conditions for life to prosper, but a global cooling event likely would have taken place because of some life forms' consumption ...

In this way, the actions of these life forms would have caused Mars to become less hospitable to life than it was initially. Self-destruction: a standard for life in the universe.

Ancient Mars may have had an environment capable of harboring an underground world teeming with microscopic organisms, French scientists reported Monday. | Local News from KRQE News 13 in ...