The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

The threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes rush to track its course. But the chance of an impact is still quite slim.

Scientists are cataloging and analyzing the first samples collected by NASA's Perseverance rover while the agency weighs its ...

A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

American space agency NASA publishes a short video showing iridescent clouds moving in the thin Martian atmosphere, as seen ...

A massive meteor strike on Mars sent shockwaves across the planet, revealing that some of its tremors weren’t tectonic but ...

NASA’s Perseverance rover is making history by collecting handpicked Martian samples for future return to Earth. Scientists are eager to study these specimens to unlock secrets about Mars’ ancient ...

The Snow Moon may bring some unexpected blizzards, but tapping into the spiritual meaning of Feb. 12’s full moon can help you ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

In the coming years, an unprecedented number of people will leave planet Earth—but it’s becoming increasingly clear that deep ...

Finding life on another planet would be a world-changing discovery for humanity. But actually detecting it is no simple task.