The early solar system was a wild, world-destroying place.
The robot's failed mission shouldn't come as a shock.
The tiniest cosmonauts could help develop a "sunblock" for radiation
The story of heroic fasteners that will get us to the moon and back.
Our eyes in the sky are facing budget cuts
Kepler and Dawn guzzled through their precious gas for similar reasons.
Stranger worlds to come
The lightning struck more than twice.
Small, but mighty.
New Horizons will soon find out what's up with MU69.
New high-res images from New Horizons reveal a very blobby space rock.
And other Tiangong-1 facts.
James Webb is now slated for a 2021 launch—only a bajillion years late.
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
NASA announced the nine astronauts selected for its Commercial Crew program.
Earth isn't flat, but this strange world might be.
No crowdfunding required
There's still more to explore after Pluto.
What is going on with my moon?
Lunar exploration started as an adventure, now prospectors also see dollar signs in that smiling cheese.
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Not quite ready for takeoff
Should we go? Can we afford to go? All this, and more.
After a long trip, OSIRIS-REx gets down to business.
The spectacular scope launches in 2019.
But the end is fast approaching.
The Rogallo wing was NASA's multi-million dollar 1960s attempt to stop ending its missions with splashdowns. It didn't work.
Divest from Russia, with love
Short answer: a time machine
I is for interstellar.
With an icy heart.
Which one will win? We'll find out in 2019.
How much are you willing to pay to become an astronaut?
Confirming hints picked up by the Hubble just a few years ago.
But we won't know where it's going until the government shutdown ends.
The Great Lakes are mighty chilly.
Excerpt: A Book of the Moon
Doesn't seem too fair.
About 120,000 civilians will see everything from arc jets and astrobiology labs to giant centrifuges and wind tunnels.
The journey to Mars, told in GIFs
Europa, the outer solar system, and a lot of questions.
Here's how it all began.
Like, can we even do that?
American Nick Hague and Russian Alexey Ovchinin endured a rough emergency landing.
Inside the dreaded 'pogo effect'
Neutrinos, meet IceCube.
The Parker Solar Probe is our first mission to "touch" the Sun
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
Each Apollo lunar module cost about $149,000,000. So why were they unceremoniously smashed into the Moon?
An excerpt from the June 1962 issue of Popular Science, in honor of Glenn's 95th birthday
A bigger bang
In 10 years, our Moon may get a tiny new moon
Many more eyes in the skies
Raise the e-sail
Here's what New Horizons saw as it zoomed past the former planet
SpaceX better watch its back
And the rockets' red glare...
Nuclear explosions, space collisions, or gentle nudges from an ion beam?
Space gets a little more crowded
The 1986 Space Shuttle tragedy killed all seven crew members, but their legacy lives on
The solar system's smallest planet finds a place in the sun
7 vehicles that will carry humanity into orbit and beyond very soon
The revolutionary explorer gets a life extension
Get ready for OSIRIS-REx
The Space Launch System could carry astronauts as soon as 2019
Two private citizens have reportedly paid up for a lunar jaunt
Blue Origin could bring Bezos's shipping empire to deep space
Orbital manufacturing is already paving the way for better solar panels, faster internet, cleaner computer chips, and lab-grown human hearts
Like a giant egg yolk in the sky
Sticking with Plan A
Two for the price of one.
We all like having options.
It has to do with a surprisingly hazy atmosphere.
The rover shut down science activities a few days ago.
A slew of new startups are vying to serve the booming market for small satellites by launching small rockets more frequently and cheaply
"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."
The Japanese billionaire isn't the only one headed for the moon.
Launching a big rocket? You'll need to get wet.
MU69 is far from your run-of-the-mill solar system object.
But more importantly, we know a bit more about why the galaxy is the way it is.
The Crew Dragon's engine test anomaly this past weekend will have dramatic consequences over the next year, and beyond.
It's the dawn of Martian seismology.
A mix of what people got down to during the mission and what you should get down to today.
Breaking down the Mauna Kea controversy.
The plumes are stunning—and scientifically useful.
In one of the most isolated places on the globe, the 'Spacecraft Cemetery' provides a watery grave
In 1952, the Hayden Planetarium offered applicants the trip of a lifetime
There's a good reason why all of today's manned spacecraft look pretty much the same
A look behind the scenes of NASA's advanced solar probe
But not everyone agrees it's from an asteroid impact.