What the heck is a Space Force? We finally (sort of) know.
Slow but steady sun-powered spacecraft could transform space travel
The new era of space strategy
If Sierra Nevada can't build its vehicle, no one else can.
PopSci is at the launch site with fingers crossed
The ISS is fine, don't worry
Everything is awesome!
The agency's new GIPHY page is a delight
Earth's orbit is becoming dangerously crowded with space junk.
We all like having options.
Divest from Russia, with love
In 1966, the Air Force sent an uncrewed space station into orbit
You don't need a rocket to leave Earth. There's a slower, gentler trip in the works—and it comes with a cocktail.
The leak has been repaired, but its origins remain mysterious.
The simplest explanation is also the likeliest.
Chasing the cheapest way to get into orbit
A controversial bill would give companies the right to own natural resources in space, and it may pass in the Senate by the end of September
ISS commander Scott Kelly presents his playlist
Giving small satellites a boost
The baron of low-Earth orbit
Mike Massimino shows me around
It's time to stop sending up so much garbage.
Will NASA be required to fund the Dream Chaser?
A ball of fire in the sky may answer a very terrestrial mystery
The ISS is about to get some company
World View sets a new record in the quest to conquer the stratosphere
They'll launch this week to study Earth's magnetosphere
Ground Control to Major Breweries
Laying it all out on the table
Lost in space
I can see my house from here. There's my car!
See the curvature of earth with a drink in hand
Makes your junk drawer look manageable in comparison
Full steam ahead for Mars
With environmentally friendly engines
It'll be either a dull repair shop or one step toward conquering geosynchronous orbit
Now it's up to President Obama to decide whether Earth businesses can own pieces of asteroids
Om nom nom
The duo spending a year in space talk HoloLens, micro-gravity gardening, and more
They do come from Antarctica, after all.
Some things never get old
Where can we sign up?
Four possible scenarios...
Are we made of interstellar stuff?
Inks deal to launch giant inflatable habitats starting in 2020
For the moon, Mars, and beyond
Ready by 2022
Reusing a reusable spacecraft design
The whole space station crew crams into the BEAM module for a photo op
Enter the competition by October 7
Deep Space Industries' Prospector-1 will hunt for valuables and land on an asteroid
The docking adapter opens big potential for the commercial crew program
Sentinel 1-A is operating routinely, despite some damage to a solar panel
Tiangong-2 will be home to two astronauts for 30 days
Asgardia might become a legit state, but don't count on it
The country's longest manned mission is part of their plan for a permanent orbital outpost
Now it's ready for the final tests before launch in 2018
Restore-L could fix broken satellites and clean up space junk
NASA was founded on the principle that "activities in space should be devoted to peaceful purposes for the benefit of all mankind"
My, what big windows you have
Here's how it all began.
Reflections from a prodigious force in space exploration.
Researchers monitored microbes on a mock flight to Mars.
It's big, but our planet is bigger.
But you're still extremely unlikely to ever get hit by a piece.
How much are you willing to pay to become an astronaut?
You've likely outlived the company that wanted to film you dying on Mars.
It's a groundbreaking step, but hardly surprising.
The 9-part series premieres on YouTube and Google Play this month
Deep Sea Meets Deep Space
Just months after Sputnik's launch, the USAF had a manned lunar landing program all figured out.
Plus, 9 simple ways to move in zero gravity
Science takes off.
Stream the United Launch Alliance and Arianespace launches. And maybe Blue Origin and SpaceX.
How duct tape and tube socks saved three astronauts
Rapid manufacturing methods may eliminate dependence on Russian rockets
Everybody poops. In space, it's pretty difficult and requires a lot of planning.
It all depends on who you ask
Experts still aren't sure how the sixth military branch would actually work.
The Great Lakes are mighty chilly.
Thus preventing an even bigger disaster
And the rockets' red glare...
It's a bit like a terrestrial house, but also a bit like a human body.
Can gardens help astronauts go farther?
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
Three designs for an in-suit toilet take home $30,000
Maybe, but they're still a bad idea