New high-res images from New Horizons reveal a very blobby space rock.
"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."
New Horizons will soon find out what's up with MU69.
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Raise the e-sail
We're under a time crunch.
A good week for space photography
This year's missions to the outer solar system are set to shake up the planetary family tree
Scientists recreated ice planets' diamond rain.
Rise Of The Rocket Girls gives the untold story of the women behind the space race
Is there a planet—or even planets—waiting to be discovered out there?
It could be the largest moon we've ever seen
New research provides some clues about our solar system's most mysterious planet.
It's surprisingly lacking in heavy elements
From the Popular Science archives.
A 'Forbidden planet' defies odds and thrives under inhospitable conditions.
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
Popular Science goes way back
Scientists are hot on the trail of our solar system's 9th planet
But the cold would kill you before the smell did.
Shower your friends with meteor facts.
Countdown: 45 years left until 'First Contact'
The Triton Hopper can propel itself a half-mile into the air
As you battle the blizzard, just be happy you don't live on Pluto
And he thinks the upcoming flyby will prove it
More exciting news about cold, dead rocks
Meet the moon with 11 mile high cliff
Even in space, bureaucracy exists.
Even though I helped demote it
How skeptical should we be, and how will we find out if this mystery planet is really out there?
Where can I find a planet like that?
Reflections from a prodigious force in space exploration.
Short answer: Because we changed the definition of the word “planet” to better fit its meaning.
Gravity makes the Earth round.
It could be something even cooler.
There's still more to explore after Pluto.
What is going on with my moon?
Not quite ready for takeoff
The spectacular scope launches in 2019.
James Webb is now slated for a 2021 launch—only a bajillion years late.
A glimpse into the birth of solar systems
What's on the horizon for the New Horizons spacecraft
Different kinds of rocks have different kinds of water
What will we find when we reach Pluto and Ceres? We don't know, but it's going to be wild.
In July, New Horizons crosses the next great frontier in our solar system
Scientists catch a Neptune-style orbiter by its very long tail
Pluto is just the beginning
Because aliens like podcasts too
Short answer: It depends who you ask
Till mid-February, early risers will see the first five-planet alignment in a decade
The evidence is right in front of you.
Flights not included
And it's still not Pluto
Divest from Russia, with love
NASA's mission to Jupiter is brought to you by: the Sun, from 500 million miles away
Konstantin Batygin is one of the 10 most brilliant people of 2016
The family isn't close.
Another day, another hypothetical object on the outskirts of the solar system.
Don't you want to meet them?
Which one will win? We'll find out in 2019.
Submarines and rovers will go for a dive on the moons of Jupiter and Saturn
Something's got the Kuiper belt's rocks off, and there's a scramble to find it.
And it could help prove the existence of Planet Nine.
It follows its predecessor toward where no other (active) spacecraft has gone before.
It's now one of two working spacecraft in interstellar space.
But we won't know where it's going until the government shutdown ends.
How the gas giant got its rings.
The Great Lakes are mighty chilly.
Scientists directly imaged two embryonic exoplanets 370 light-years away.
The journey to Mars, told in GIFs
Europa, the outer solar system, and a lot of questions.
Like, can we even do that?
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
NASA announced the nine astronauts selected for its Commercial Crew program.
American Nick Hague and Russian Alexey Ovchinin endured a rough emergency landing.
Earth isn't flat, but this strange world might be.
The story of heroic fasteners that will get us to the moon and back.
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
Lunar exploration started as an adventure, now prospectors also see dollar signs in that smiling cheese.
In 10 years, our Moon may get a tiny new moon
Many more eyes in the skies
Stranger worlds to come
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