Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Here, Space.com explores some of the biggest space mysteries currently perplexing scientists. In the early 20th century, astronomer Edwin Hubble discovered that the universe is expanding ...

Explore the universe with news on fascinating discoveries ... countries trying — and mostly failing — to reach the moon and carry out their intended missions. But 2025 may offer a second ...

Learn about the missions NASA's Jet Propulsion Laboratory is planning to launch, including research on the expansion of the ...

It's been a long, strange trip for this universe we call home. Follow its development and take a peek at what's ahead with the Mysteries of Deep Space interactive timeline. Simply click on the ...

Don’t miss these other science mysteries no one has figured out yet. The other 70 percent of the universe is thought ... you never learned in school. The moon’s gravitational pull is ...

There's a significant imbalance between matter and antimatter in our universe, but a strange particle ... path to solving a number of cosmological mysteries. Editor's note: This article was ...