It takes oxygen to make iron rust. So when scientists discovered hematite spread widely through lunar high latitudes, they were…
Hundreds of millions of years ago, Earth went through two episodes of severe glaciation. These two episodes—the Sturtian and the…
Could lava tubes on the Moon and Mars play a role in establishing a human presence on those worlds? Possibly,…
Earth's lithosphere is made up of seven large tectonic plates and a number of smaller ones. The theory of plate…
Venus' surface is no stranger to volcanoes. Radar images show more than 1,000 volcanic structures on the planet. But for…
The Earth's magnetic North pole has been moving awfully fast in recent years. But there's nothing to worry about.
When magma comes out of the Earth onto the surface, it flows as lava. Those lava flows are fascinating to…
In January 2019, China landed its Chang'e 4 mission on the Moon's far side. The Yutu-2 rover got busy exploring…
It seems almost certain that an asteroid impact wiped out the dinosaurs. But only almost. Another competing theory won't completely…
We all know what water is. And what rock is. The difference is crystal clear. Well, here on Earth it…