This study presents the first physical evidence that Snowball Earth reached the heart of continents at the equator.' ...

STEVE is a mysterious purple-white arc near the aurora, typically seen after space disturbances called substorms. A new study reveals a rare STEVE event without a substorm, prompting questions about ...

Geologists found evidence in the way enigmatic sandstones called Tava formed in the Rocky Mountains hundreds of millions of ...

The presence of white rocks on Mars is particularly intriguing due to the planet's predominantly basaltic crust, which is ...