What is going on with my moon?
New Horizons will soon find out what's up with MU69.
The journey to Mars, told in GIFs
Which one will win? We'll find out in 2019.
Lunar exploration started as an adventure, now prospectors also see dollar signs in that smiling cheese.
The story of heroic fasteners that will get us to the moon and back.
Europa, the outer solar system, and a lot of questions.
Like, can we even do that?
Should we go? Can we afford to go? All this, and more.
Excerpt: A Book of the Moon
Blue Origin could bring Bezos's shipping empire to deep space
Not quite ready for takeoff
Two private citizens have reportedly paid up for a lunar jaunt
We all like having options.
The Japanese billionaire isn't the only one headed for the moon.
A mix of what people got down to during the mission and what you should get down to today.
Confirming hints picked up by the Hubble just a few years ago.
Okay, it's really just an eclipse.
How much are you willing to pay to become an astronaut?
7 vehicles that will carry humanity into orbit and beyond very soon
The James Webb Space Telescope has an ever-expanding timeline—and projected cost.
Mars is at its closest and clearest right now. You know you want to look at it.
In 10 years, our Moon may get a tiny new moon
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Orbital manufacturing is already paving the way for better solar panels, faster internet, cleaner computer chips, and lab-grown human hearts
It's not a sign of the apocalypse (we hope)
There's still more to explore after Pluto.
The next one isn't until 2033, so enjoy the pictures now
"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."
The 1986 Space Shuttle tragedy killed all seven crew members, but their legacy lives on
Get ready for OSIRIS-REx
They happen about once every 18 months
Launching a big rocket? You'll need to get wet.
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.
Before women started flying in space, NASA was a little worried they might die having their periods
Heat and drills will help us probe for alien microbes
And should colonists on Mars be allowed to eat each other?
Sudden peeing, sweat balls, and so much more
In 1952, the Hayden Planetarium offered applicants the trip of a lifetime
PopSci is at the launch site with fingers crossed
Short answer: a time machine
Retired astronaut Scott Parazynski talks about his life of adventure
Stranger worlds to come
It's not just a big deal for future space tourists, either.
The spectacular scope launches in 2019.
James Webb is now slated for a 2021 launch—only a bajillion years late.
Divest from Russia, with love
New high-res images from New Horizons reveal a very blobby space rock.
But we won't know where it's going until the government shutdown ends.
The Great Lakes are mighty chilly.
A small study indicates astronaut hair grows more slowly
And no, I did not throw up.
One more thing to worry about in space.
Results show the human body changes, but not dramatically.
Researchers are testing how life on the International Space Station affects the microbiome.
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.
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
And that in turn could help us get to Mars, says NASA-commissioned study
Tiny satellites could help turn the Moon into a gas station for solar system exploration
Our solar system is pretty familiar by now, but even the Moon was shrouded in mystery just 50 years ago
He passed away just one day before the 45th anniversary of his lunar landing
Each Apollo lunar module cost about $149,000,000. So why were they unceremoniously smashed into the Moon?
The baron of low-Earth orbit
And it wouldn't actually be that expensive, thanks to robots, 3D printing, and SpaceX
A lesson from the Apollo missions
A conversation with the founder of Moon Express
In memory of "the last moonwalker"
The company hopes to put robots on the moon's South Pole by 2020
Some drawings to explain the August eclipse's trajectory.
But it's still pretty dry.
But we'll have to get there first.
One small step for a man and his camera, one giant leap for photography.
It could be the largest moon we've ever seen
The proof is out there.
It could be the first of many firsts.
NASA has been understandably stingy with the last of its pristine samples.
We'll need more money, more time, or both.
The robot's failed mission shouldn't come as a shock.
But Blue Origin has a lot of work to do before its lander can touch down.
But that's a good thing.
We have no idea what it might be.
Solar storms, sharp sand, and near-weightlessness are just the tip of the iceberg.
Even 50 years after Apollo 11 landed on the moon.
Apollo 11 gave us the Rosetta Stone of our solar system's history.
We mapped out all the space trash.
A less common reply against Moon hoax theorists: the way dust behaves in Apollo videos is proof we landed on the Moon.