Forget the dusty, rusty landscape you see today. Billions of years ago, Mars may have been soaking wet. Tropical storms might ...

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior.

NASA's Perseverance rover found rocks on Mars that on Earth usually form in tropical environments. That Mars once hosted ...

NASA’s Perseverance rover may have stumbled on a visitor from outer space – a strange, shiny rock on Mars that scientists think could be a meteorite forged in the heart of an ancient asteroid.