Like, can we even do that?
The closest potentially habitable planet has an intriguing interior
We need tiny spaceships. Lots of 'em.
Now to figure out if it has liquid water. Or an atmosphere.
Sid Meier and Yuri Milner know why
Seeking a distant pale blue dot
The star system is 25 trillion miles away
Going to Alpha Centauri "within a generation"
The enormously ambitious mission faces a few challenges
Stars tell stories, guide explorers, and help scientists talk about the galaxy.
Here's what the astrophysicist says about the future of space exploration
Before Breakthrough Starshot goes interstellar, let's test the laser sails
Shooting for the stars.
Now, the KickSat may power Yuri Milner's $100 million Breakthrough Starshot Project
It could be 20 or 30 years until we can build a laser big enough
When you're traveling this fast, every little speck counts
Instead of hosting planet-friendly dust, Proxima Centauri spews radiation.
Directed energy may be the key to rapid interstellar travel
A potentially habitable world only 4.2 light years away
Breakthrough Starshot, but for romantics
You have died of dysentary
Giant planet orbits three stars at once
Autonomous science-bots will make it easier to explore our solar system … and beyond.
"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."
It's close, but you won't want to visit.
It's just plane confusing.
Scientists directly imaged two embryonic exoplanets 370 light-years away.
Megapixels: Binary stars are at the heart of this celestial crustacean.
These are the first exoworlds named by the public
Close encounters of the stellar kind
Could this transmission come from intelligent life?
Three of them may be habitable
TESS will give us a new view of our galactic neighborhood.
Before we built the International Space Station, these concepts promised incredible futures.
We get it, Sun, you're the best and brightest
His favorite astronaut, his most beloved fictional space explorer, and the discoveries that would have changed the plot of 'The Martian.'
And its clouds may be made of gemstones
But that's a pretty big 'if'
Now astronomers want to know: what makes a star a star?
Some drawings to explain the August eclipse's trajectory.
Seeing is believing
Our best guess for what it would take to get to planets that are really, really far away.
It's having memory issues.
Naming new worlds is a confusing mess
The right kind of chemistry can lead to some strange sorts of worlds.
The Voyager spacecraft are bringing “Johnny B. Goode” into deep space
Choose wisely, because this is for real
In our galaxy, but still far, far away
A conversation with the founder of Moon Express
Don't pack your bags yet
Happy Carl Sagan day! Celebrate with this blast from the past in the pages of Popular Science
Tiny satellites could help turn the Moon into a gas station for solar system exploration
A moment of silence
NASA is collecting new info about the particles orbiting the gas giant
The spacecraft completely changed our view of Saturn and her moons
I is for interstellar.
A glimpse into the birth of solar systems
German carmaker lends its expertise to the pursuit of lunar exploration—and XPrize triumph
He made history (again) by going to space at age 77
Two stars enter, one star leaves
Read the suit in all its glory here.
Beta Pictoris is the ultimate family man ... er, star
With no plans for future upgrades, the telescope faces a fiery end
Different kinds of rocks have different kinds of water
Who knows what might be lurking on this weird, tiny space rock
A quantum quandary
Short answer: It depends who you ask
To Instagram and beyond
Big things come in small packages
Here's the whole collection
Plus, 9 simple ways to move in zero gravity
A new kind of space weather
Are your molecules lefties or righties?
Konstantin Batygin is one of the 10 most brilliant people of 2016
Mars is hard
The latest from Rosetta's smashing mission
But the search for life on the red planet isn't over yet.
Time for a new plan.
InSight will tell us about the planet's interior, but it's got to stick the landing first.
Microbes on ISS are changing their genes, but don't worry.
Fast Radio Bursts have an origin story—and we're closer to learning what it is.
A look behind the scenes of NASA's advanced solar probe
The Space Launch System could carry astronauts as soon as 2019
Our solar system's largest planet is a master of disguise.
It contains a whopping 665 million pixels.
NASA didn't have much computing power to work with in 1969.
Meet our closest neighbor. The planet closely orbits Alpha Centauri B, which is a little bit smaller than the sun.