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

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

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

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

SpaceX shifts focus with IPO approaching ...

Join NASA’s rovers Curiosity and Perseverance as they traverse Mars’ rugged terrain, examining rocks, craters, and ancient ...

Wringing out clues that could change everything.

Bright white rocks found by NASA’s Perseverance rover hint at ancient Martian rain lasting millions of years, raising new questions about how wet Mars once was and what those conditions might mean.

NASA's Viking missions to Mars may have discovered evidence for life on the Red Planet after all, according to scientists who ...

A northern summer dust storm on Mars boosted high-altitude water escape, suggesting short-lived events may play a bigger role ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...