Like wrinkles on aging skin, Mercury's lobate scarps are proof that planets with iron cores shrink as they age.
Geologists find a gem, rich with water, that backs up theories that massive oceans lie deep beneath the Earth’s surface.
An Australian zircon crystal is the new oldest earth on Earth.
Not news: Mars rover discovers rock. News: rock that spontaneously appeared out of nowhere.
If only all volcanoes looked like this.
If you've ever wanted to know what it feels like to live on the surface of Mars, this job's for you.
The more we learn about Mars, the less we know, and the weirder it gets.
Rocks that somehow race around the Southern California desert have been making fools out of scientists for decades, but the mystery may now be solved.
A hunk of stone 100 million years old could be a piece of the real geological lost continent.
A team of geologists have studied earthquakes to find out how they produce gold deposits.