A 'Forbidden planet' defies odds and thrives under inhospitable conditions.
Even in space, bureaucracy exists.
New research provides some clues about our solar system's most mysterious planet.
We're under a time crunch.
Meet the moon with 11 mile high cliff
It could be the largest moon we've ever seen
Countdown: 45 years left until 'First Contact'
"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."
From the Popular Science archives.
Shower your friends with meteor facts.
A good week for space photography
Is there a planet—or even planets—waiting to be discovered out there?
But the cold would kill you before the smell did.
Scientists recreated ice planets' diamond rain.
It's surprisingly lacking in heavy elements
More exciting news about cold, dead rocks
The Triton Hopper can propel itself a half-mile into the air
Rise Of The Rocket Girls gives the untold story of the women behind the space race
Scientists are hot on the trail of our solar system's 9th planet
Popular Science goes way back
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
And he thinks the upcoming flyby will prove it
This year's missions to the outer solar system are set to shake up the planetary family tree
As you battle the blizzard, just be happy you don't live on Pluto
