Geologists are analyzing ancient clues to tell our origin story.
What's on the moon? Here are the "midget-sun hypothesis," lunar snow, and more wild speculations we made prior to the Apollo 11 mission in 1969
Stem cells, Parkinson's pills, and viruses that improve your DNA: The next generation of performance enhancers won't show up on a urine test
Twenty-five curious, mysterious, or otherwise beguiling destinations to satisfy your inner science-history geek
Watch the monumental landing here
A history of rocket technology.
Invisibility is a staple of science fiction, from H.G. Wells to Romulans. Now scientists see a way to make objects disappear
Massive space rocks hurtle past Earth with frightening regularity. Some scientists want to deflect them. Others want to drag one closer.
A lot of them! And that's just if you know how to stack them for optimal use.
We've rounded up 2014's most mind-blowing images for your viewing pleasure
A case of ancient hominid hanky-panky
Whatever did happen to yesterday's beloved technologies of tomorrow?
Or, how to distill 11,000 pages of text into a single graphic
Newsworthy eye candy
Abominable snowmen, sea serpents and dragons, oh my!
Mars planners suggest a robot-to-human hand-off in space.
Stories from the coolest day jobs in the world.
Our editors scrounged up some truly bizarre facts.
Early appearances by Albert Einstein, Nikola Tesla, Ernest Rutherford, and other notable 20th-century scientists
By the time you're done, it's like a whole new ice cream.
New observations nudge the Universe's timeline