Space exploration is a broad topic covering many facets of deep-space and planetary science. Learn about space probes, Mars Rovers, SETI and other out-of-this-world subjects.
Are we all Martians?
Are we all Martians? Learn about the theory that primitive bacteria arrived on Earth from outer space. See more »
Branson or Bezos: How well do you know the players in the new space race?
How much do you know about the leaders in the new space race? Test your knowledge with this new space race quiz. See more »
How Space Regulation Works
Space regulation is a bit more complicated than Hollywood's space cops make it seem. Learn about the complications of space regulation. See more »
10 Major Players in the Private Sector Space Race
These 10 major players in the private sector space race are determined to reach the final frontier. Learn more about who these 10 space companies are. See more »
5 Tiny Countries With Big Space Dreams
These 5 tiny countries with big space dreams may not be planting a flag on the moon, but their ambitions are still out of this world. See more »
10 Signs China Is Serious About Space
China is slow but steadily expanding its space exploration program. Check out 10 signs that China is serious about space. See more »
Is China winning the new space race?
Is China winning the new space race? Read about China's ambitious plans for the new space race at HowStuffWorks. See more »
How the Mars Curiosity Rover Works
The new Mars Curiosity Rover is one of the latest NASA missions to the Red Planet. Read about the Mars Science Laboratory at HowStuffWorks. See more »
Blastoff! The Big, Bad Space Launch System Quiz
The Space Launch System (SLS) is the driving force behind the American space program for the foreseeable future. Test your knowledge with this Space Launch System quiz. See more »
How the Space Launch System Will Work
The Space Launch System is the driving force behind the U.S. space program for the foreseeable future. How will the Space Launch System work? See more »
Loading more content
Why Didn't Evolution Give Us the Ability to Smell Fresh Water?
There Are 5 Types of Haunted House Visitors. Which One Are You?
Earthlings Crowdsource the Search for Martian 'Spiders'
See More Headlines »