Phobos is gradually spiraling toward Mars, drawing about 6 feet (1.8 ... The Soviet Union also launched numerous Red Planet spacecraft in the 1960s and early 1970s, but most of those missions ...

A new study shows Mars’ early thick atmosphere could ... smectite forms through tectonic activity, drawing down CO2 from the atmosphere and cooling the planet over time. But Mars, unlike Earth ...

given how much clay is estimated to cover Mars' surface, the planet's clay could hold up to 1.7 bar of carbon dioxide, which would be equivalent to around 80% of the planet's initial, early ...

So night after night, astronomers would stare at the hazy sphere and draw its ... our view of Mars changed. Early on, photography dispelled the imaginings of Lowell and revealed a planet with ...

New research published in Earth and Planetary Science Letters suggests that Mars ... two planets started with similar D/H ratios and that their water came from the same source in the early solar ...

The researchers argue it’s possible, and that, “the best validation of our predictions would come from the discovery on present-day Mars of methanogenic life descending from the early ...

New research is revealing similarities between Earth's Grand Canyon and ones on the red planet ... geography of Mars. LIN: To help inform the - what climate might be on the early Mars.