His favorite astronaut, his most beloved fictional space explorer, and the discoveries that would have changed the plot of 'The Martian.'
Oxygen-breathing critters might be more plausible than we thought.
Shower your friends with meteor facts.
We think you can, Opportunity.
Don't you want to meet them?
Heat and drills will help us probe for alien microbes
A look behind the scenes of NASA's advanced solar probe
A curved line marked the planet's surface for four days
Seeking a distant pale blue dot
Short answer: It depends who you ask
It's been 50 years since we got the first images of Mars. Now we're about to get the first images of Pluto.
Who knows what might be lurking on this weird, tiny space rock
This year's missions to the outer solar system are set to shake up the planetary family tree
It's called a conjunction, and it sure is pretty
The greatest hits of Earth's unmanned spacecraft
The upper atmosphere of Venus is surprisingly similar Earth.
More than a light Venusian breeze.
Till mid-February, early risers will see the first five-planet alignment in a decade
It's time to return to our hellish neighbor.
Also in space: A neighborhood of black holes, a new (and old) reason to study Venus' clouds, and the end of the Lunar XPrize.
Hot new evidence
Which one will win? We'll find out in 2019.
Welcome to orbit, Akatsuki
Not all scientists are happy about recent Discovery mission picks
Even in space, bureaucracy exists.
Now if only we can get Lando Calrissian to spearhead the project
Pluto is just the beginning
Finally, a good use for climate change
Must-see destinations out beyond Mars
Torpedo technology from the 1920s could fuel future spaceflight
Q&A with Amy Shira Teitel on 'Breaking the Chains of Gravity'
Skyping with Mars.
So close we might even be able to measure its wind speeds, GJ 1132b is a very important exoplanet
The Parker Solar Probe is finally on its way.
Time for a new plan.
The Dawn spacecraft could change the shape and scope of future missions
Boldly going where no bot has gone before
In 1952, the Hayden Planetarium offered applicants the trip of a lifetime
On Io, the floor is basically lava
We're under a time crunch.
After nine years and three billion miles, here's what we're learning from it all
Bring an umbrella
The evidence is right in front of you.
Europa, the outer solar system, and a lot of questions.
Mars is at its closest and clearest right now. You know you want to look at it.
A new study shows us why we may want to rethink how we search for extraterrestrial life.
The Department of Energy has an idea that could double production
Sid Meier and Yuri Milner know why
A bigger smash solves everything.
High impact research.
The Parker Solar Probe is our first mission to "touch" the Sun
Made in the USA
Before Breakthrough Starshot goes interstellar, let's test the laser sails
The ExoMars orbiter is going strong, and slowing down.
The news isn't great, but it's not a showstopper either.
What's next for Hayabusa 2
SpaceX's Falcon Heavy test is just the latest.
Bright lights, big planet.
An old theory gets a new assist from the sun.
The finding is good news for the search for intelligent alien life
Protecting future Mars payloads from fiery blasts
Erupting slush instead of lava
One ticket to ride this fireball into space, please
Step one: realize we're not alone.
Here's the whole collection
Northwestern University puts on a Solar System symphony
You can basically read fanfiction about them
Apollo 11 gave us the Rosetta Stone of our solar system's history.
The answer was blowing in the solar wind.
Short answer: a time machine
Researchers are testing how life on the International Space Station affects the microbiome.
Happy Carl Sagan day! Celebrate with this blast from the past in the pages of Popular Science
From the Popular Science archives.
Scanning a million nearby stars, the 'Breakthrough Listen' project will be the world's biggest hunt for ETs
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
Another reason to look for alien life there
The ISS just celebrated its 15-year anniversary yesterday. Could it survive another 15?
Orbiting laboratory could pave the way for a landing party
Before women started flying in space, NASA was a little worried they might die having their periods
Stomachs weren't built for space.
James Webb is now slated for a 2021 launch—only a bajillion years late.
See this interstellar blood bath in all its glory detail.
Shooting for the stars.
More than 200,000 aspiring space explorers volunteered for a one-way trip to Mars. Are they insane?
The Dawn spacecraft arrives at Ceres this March, and it could be the most surprising space mission in decades
New video tours the mini-planet in 3D
Piping hot Jupiter fries, please!
It's not a sign of the apocalypse (we hope)
Could alien life survive on Saturn's moon?
The longest night of the year and how it works.