Organic compounds discovered on the Red Planet cannot be fully explained by non-biological sources, say astrobiologists.

NASA has plans to send astronauts to Mars surprisingly soon, but their exact timeline is still rather vague for a number of ...

The planet Mars may once have enjoyed a much milder climate, accompanied by regular and abundant rain. This long-debated ...

The key to solving the mystery of the Viking results is the discovery of perchlorate on the Martian surface in 2008.

The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, ...

SpaceX shifts focus with IPO approaching ...

NASA's Perseverance rover discovered rocks on Mars, providing new evidence the red planet was once a wet, habitable world ...

While Mars may appear round, its true shape is subtly stretched and uneven, a product of its unique geological past and ...

"Explosive volcanism could repeatedly seed low latitudes with ice and ash, producing buried or insulated ice deposits that help explain the excess hydrogen signals measured near the equator." When you ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than ...