Everything you need to know about our nearest neighbor.
From auction houses to eBay, this is how people buy up Nobel Prizes and space rocks.
Life as we know it probably wouldn't exist.
It's a new policy for the International Astronomical Union.
Massive space rocks hurtle past Earth with frightening regularity. Some scientists want to deflect them. Others want to drag one closer.
Is our planet a dirty thief?
Or at least a little piece of it?
With the upcoming release of the major motion picture Europa Report, a couple of Jet Propulsion Lab scientists explain how science fiction has evolved in response to our growing understanding of space.
In a wide-ranging interview with PopularScience.com, Aldrin talks about a mission to Mars, 34 years of sobriety and the future of American leadership in space.
You will burn. You will freeze. And the moon will explode. Four gruesome apocalypse scenarios from the September 1939 issue of Popular Science.
An expedition led by Amazon's Jeff Bezos recovered two F-1 engines from moon missions of the 1960s and 1970s.
New findings demonstrate how the moon could have been made from Earth parts, not kamikaze-planet pieces.
Tyson's book "Space Chronicles: Facing the Ultimate Frontier" is out today
Taylor Wilson always dreamed of creating a star. Now he's become one
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
See how scientists are learning from the most common form of life on Earth to fight cancer, produce ethanol and maybe even grow crops on the moon
It's not impossible, say astronomers, but it wouldn't last long
What makes investors do the wrong thing, all together, pretty much all the time?
Will too many hot chili peppers kill you? Is the moon on the verge of erupting? PopSci tackles life's whys, hows and who-dunnits in this Q&A-style; feature
Sure, the Oscars made for juicy Sunday-night entertainmentâ€”but where, amid the glittering gowns and flash bulbs, were the geeks? Here's our rundown of the honors the Academy forgot to hand out...