It's a groundbreaking step, but hardly surprising.
One more thing to worry about in space.
If it's not delayed again, that is.
It's not just a big deal for future space tourists, either.
We all want to know who it is.
Researchers are testing how life on the International Space Station affects the microbiome.
What the heck is a Space Force? We finally (sort of) know.
It's time to stop sending up so much garbage.
In 1966, the Air Force sent an uncrewed space station into orbit
Experts still aren't sure how the sixth military branch would actually work.
Can gardens help astronauts go farther?
It all depends on who you ask
How much are you willing to pay to become an astronaut?
The identification system blinks for a millionth of a second.
Take it from an astronaut.
Here's how it all began.
We all like having options.
Earth's orbit is becoming dangerously crowded with space junk.
Lockheed Martin will build a deep space habitat inside a space shuttle cargo container.
Their dream jobs just became a reality.
A gallery of photos, visualizations, and other pictures of outer space.
Orbital manufacturing is already paving the way for better solar panels, faster internet, cleaner computer chips, and lab-grown human hearts
And should colonists on Mars be allowed to eat each other?
Asgardia might become a legit state, but don't count on it
What we learned at a space conference that puts inclusivity first
To gain an edge here on Earth, China is pushing ahead in space
Spelunking as a space simulation
A lesson from the Apollo missions
7 vehicles that will carry humanity into orbit and beyond very soon
Inks deal to launch giant inflatable habitats starting in 2020
Two private spacecraft are now attached to the space station; more will follow
PopSci is at the launch site with fingers crossed
The baron of low-Earth orbit
The 1986 Space Shuttle tragedy killed all seven crew members, but their legacy lives on
Now it's up to President Obama to decide whether Earth businesses can own pieces of asteroids
One step closer to owning pieces of asteroids?
The ISS just celebrated its 15-year anniversary yesterday. Could it survive another 15?
To Instagram and beyond
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
Will there be horrible consequences? Live video right here
You don't need a rocket to leave Earth. There's a slower, gentler trip in the works—and it comes with a cocktail.
Many hopefuls have signed up for a one-way ticket to the red planet. But if they aren't prepared, the trip may be a short one.
Planning for the worst
This isn't good news for a future Mars trip
A look back at the spacecraft's greatest discoveries
Laying it all out on the table
The greatest hits of Earth's unmanned spacecraft
A Gallery Of Photos Curated By The Person Who Made Most Of Them
How private corporations are using the station's lab for research and development
NASA is still trying to figure that out
A sweet experiment
Space travel is going electric
Today could be the first day of a new era in spaceflight
A unique study will measure how the human body reacts to a year in space
In 10 years, our Moon may get a tiny new moon
An interview with Keri Bean, NASA engineer and R2D2's best friend
Ground Control to Major Breweries
The final frontier is a photographic nightmare
Up close with Robert Bigelow and his dream of habitable bubbles in space
Turning the heat up on this frigid space rock
They'll launch this week to study Earth's magnetosphere
World View sets a new record in the quest to conquer the stratosphere
It's so hard to find a decent place to dock in low Earth orbit
More than 200,000 aspiring space explorers volunteered for a one-way trip to Mars. Are they insane?
The future of space travel is all about reusability
Rapid manufacturing methods may eliminate dependence on Russian rockets
Complete with a rockin' soundtrack
The Dawn spacecraft could change the shape and scope of future missions
Launching little spacecraft to pay for big spacecraft
Space Tourism Can Survive The Blow, But It Won't Be Easy—Or Cheap
If at first you don't succeed... try gently landing a rocket on a boat again
Short answer: They create a beautiful swirling mess.
So pretty. So much light pollution.
New year, new reusable spacecraft
Wrenches, and sample containers, and extruders, oh my
The ISS is about to get some company
While the Antares rocket is in the shop, the Atlas V will bring Orbital Sciences to the ISS
Getting an inside look at what went wrong during a near-fatal spacewalk last summer
What's on the horizon for the New Horizons spacecraft
NASA will attempt to launch the unmanned capsule again on Friday morning
With no plans for future upgrades, the telescope faces a fiery end
This short sci-fi film, narrated by Carl Sagan, inspires us to explore the solar system
Festivities in free fall
Because when rockets are truly reusable, they're going to need a place to park.
This Soyuz rocket launched the remaining crew of Expedition 42 into orbit on Sunday
Crowdfund this spacecraft and put a piece of yourself in a lunar time capsule
Astronaut Leroy Chiao explains what it will take for commercial passengers to fly into space
One professor says an asteroid survey would be a better use of NASA's time and money.
Yesterday's Antares failure was not exactly unprecedented.
A new vehicle design could enable same-day shipping from the ISS to Earth, making science experiments in microgravity cheaper and easier.
Human hibernation could be a great way to get to Mars (and beyond), but a few big questions remain.
But CEO Bas Lansdorp says the study used bad data.
If Sierra Nevada can't build its vehicle, no one else can.
Will NASA be required to fund the Dream Chaser?
The record-breaking rodents will travel to the International Space Station this weekend.
And it can be yours -- for a small fee
Rosetta is on a journey to unlock the history of the solar system.