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

Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

A warm afternoon on ancient Mars lasted about as long as a Silicon Valley internship. That is the sobering conclusion of a ...

Humanity is far from colonizing Mars, but that’s not stopping a group of space enthusiasts from practicing anyway. CNBC ...

The agency’s Mars 2020 rover, set to launch next summer, will be the first to collect samples of Martian material to send back to Earth.But if scientists discover biosignatures of life in Mars ...

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

Shostak also said that if there is still life on Mars it would not be on the surface, but underground in aquifers and lakes underneath the Martian soil.

Other Mars missions have tried to build a comprehensive picture of Mars’ past, but Perseverance will be the first NASA mission since the Vikings to conduct robust hunts for life on Mars.

To put pieces of Mars in the hands of scientists will require a lander to retrieve the samples; a probe to bring them home; and then an ultra-secure storage facility that will keep Earth life from ...

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