The upper atmosphere of Venus is surprisingly similar Earth.
It's both chance and certainty. And there's something kind of beautiful about that.
Sometimes you just need a rocket that flies at 2 million miles per hour
Popular Science on eclipses in Sumatra, Spain, and Hawaii.
Throwing shade on Earth's telescopes
Raise the e-sail
Now to figure out if it has liquid water. Or an atmosphere.
It's getting closer all the time.
The closest potentially habitable planet has an intriguing interior
This year's missions to the outer solar system are set to shake up the planetary family tree
The finding is good news for the search for intelligent alien life
The solar system's smallest planet finds a place in the sun
A sky full of super-Earths
Shower your friends with meteor facts.
The observatory was battered by Hurricane Maria earlier this year.
It's amazing what centuries of data can do.
The traveller (maybe from another star) didn't stay long and it's moving away fast
A look back at the spacecraft's greatest discoveries
From the Popular Science archives.
The ExoMars orbiter is going strong, and slowing down.
The ups and downs of our solar system's least explored planet
Konstantin Batygin is one of the 10 most brilliant people of 2016
Satellites and space tourists