Apollo 11 gave us the Rosetta Stone of our solar system's history.
The story of heroic fasteners that will get us to the moon and back.
Conventional wisdom has it that aliens should be either everywhere, or nowhere. A new model suggests they can be both.
The proof is out there.
Countdown: 45 years left until 'First Contact'
In 1966, the Air Force sent an uncrewed space station into orbit
In the December 1980 issue of Popular Science, a 38-year-old theoretical physicist answers the ultimate question about the universe.
The family isn't close.
This gas giant has seen it all.
A sky full of super-Earths
He made history (again) by going to space at age 77
Bring an umbrella
Short answer: It depends who you ask
A Gallery Of Photos Curated By The Person Who Made Most Of Them
The finding is good news for the search for intelligent alien life
So pretty. So much light pollution.
Lost on the Red Planet? Ask Dr. Fred Calef III
With no plans for future upgrades, the telescope faces a fiery end
My, what epic epochs you have there
Happy Carl Sagan day! Celebrate with this blast from the past in the pages of Popular Science
Don't pack your bags yet