By studying Martian meteorites, scientists think they've found an explanation for ancient eruptions on the Red Planet.
An old theory gets a new assist from the sun.
Gravity makes the Earth round.
An 'Oumuamua by any other name would still be as fascinating.
It's time to return to our hellish neighbor.
We think you can, Opportunity.
In the December 1980 issue of Popular Science, a 38-year-old theoretical physicist answers the ultimate question about the universe.
Don't you want to meet them?
Our eyes in the sky are facing budget cuts
The top 7 explanations for the star's weird behavior, ranked roughly in order of plausibility
Sometimes you just need a rocket that flies at 2 million miles per hour
Yes, satellites can see the Mumbai garbage fire from space. But they can also see your house, and home plate in Yankee stadium.
Fortunately it's not headed for Earth
Almost as good as the book
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
Short answer: It depends who you ask
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
Many hopefuls have signed up for a one-way ticket to the red planet. But if they aren't prepared, the trip may be a short one.
A Gallery Of Photos Curated By The Person Who Made Most Of Them
Something seems off here.