SpaceX astronaut Jared Isaacman said frequent space travel is "around the corner." How humans will survive off-world is ...

Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet ...

"Earth's rapid changes that are causing concern among scientists. Secret History uncovers the forgotten, mind-blowing facts that will leave viewers questioning everything. Follow wild stories of ...

Earth's tectonic history is what it is because of our planet's material composition. It's not like this on all planets, nor even all the rocky planets in our own solar system. However, the garnet ...

The Arecibo message contained an image of a man only. But what might seem a sexist choice deserves a more subtle ...

If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31.

Imagine a world where continents are fused into one massive landmass, and life as we know it is on the brink of ...

We know from The Lord of the Rings that Tolkien crafted endless stars in his legendarium, but are there other planets too?

A rare Triassic fossil unearthed in Brazil, Gondwanax paraisensis, could provide new insights into the origins of dinosaurs.

The existence of “Snowball Earth” is now widely accepted, but the idea ice coverage was universal is so extraordinary and ...

For the average Earthling, touring space may still be the stuff of science fiction, but in 2000, Popular Science published a ...