The heavy heart may have tipped the world over
What if water isn't essential for life to exist?
Heat and drills will help us probe for alien microbes
A bigger smash solves everything.
The evidence is right in front of you.
Solving the centuries-long mystery of the moon's swirled tattoos.
A bigger bang
Sort of a two-birds-with-one-planet-sized-stone situation.
Digging up dirt on our satellite's back story
New Horizons will soon find out what's up with MU69.
Better visit it soon!
It's just plane confusing.
The Rogallo wing was NASA's multi-million dollar 1960s attempt to stop ending its missions with splashdowns. It didn't work.
Should we go? Can we afford to go? All this, and more.
Happy Carl Sagan day! Celebrate with this blast from the past in the pages of Popular Science
A new study answers the decades-old question
Jupiter's moon is the best candidate for finding extraterrestrial life; here's how we're going to get there
A very special delivery
The truth is out there
How to interpret one popular Flat Earth theory.
Approximately 100 million years before Beyonce was born
Virgo will help LIGO locate colossal cosmic collisions.
New false color images reveal surprising geologic details