The solar system's smallest planet finds a place in the sun
What is going on with my moon?
Citizen scientists, assemble.
Watch a time-lapse here
Some drawings to explain the August eclipse's trajectory.
Don't worry, it's not rocket science.
Even partial eclipses can be exciting.
Experience over two minutes of glorious darkness.
They happen about once every 18 months
It's both chance and certainty. And there's something kind of beautiful about that.
Popular Science on eclipses in Sumatra, Spain, and Hawaii.
Tune in Friday at 4:30 a.m. ET to watch the moon eclipse the sun
Excerpt: Mask of the Sun
If you're in Northern Canada, you'll get the best view.
One of our writers went all the way to the remote Faroe Islands to get the best view of the event
Don't fry your eyeballs with counterfeits.
A magnificent flare, with a magnitude of 6.7. Plus, see our favorite Sun pics ever
It's amazing what centuries of data can do.
The evidence is right in front of you.
Fifty times the size of Jupiter.
Okay, it's really just an eclipse.
There's still more to explore after Pluto.
It's an event that should bring us all together, so don't mess it up.
New Horizons will soon find out what's up with MU69.
New high-res images from New Horizons reveal a very blobby space rock.
Europa, the outer solar system, and a lot of questions.
Like, can we even do that?
You map, IMAP, we all map.
James Webb is now slated for a 2021 launch—only a bajillion years late.
This Mars-sized exoplanet is a big deal
On Io, the floor is basically lava
Lunar exploration started as an adventure, now prospectors also see dollar signs in that smiling cheese.
Raise the e-sail
Orbital manufacturing is already paving the way for better solar panels, faster internet, cleaner computer chips, and lab-grown human hearts
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Like a giant egg yolk in the sky
Which one will win? We'll find out in 2019.
Earth isn't flat, but this strange world might be.
The story of heroic fasteners that will get us to the moon and back.
Stranger worlds to come
After a long trip, OSIRIS-REx gets down to business.
The journey to Mars, told in GIFs
Confirming hints picked up by the Hubble just a few years ago.
MU69 is far from your run-of-the-mill solar system object.
It's not a sign of the apocalypse (we hope)
Get ready for OSIRIS-REx
I is for interstellar.
Houston, we have a ringer
A sweet experiment
But you're still extremely unlikely to ever get hit by a piece.
The rover shut down science activities a few days ago.
In 10 years, our Moon may get a tiny new moon
We really need to work on our communication skills
With an icy heart.
But more importantly, we know a bit more about why the galaxy is the way it is.
The spacecraft completely changed our view of Saturn and her moons
Mars is at its closest and clearest right now. You know you want to look at it.
Here's what New Horizons saw as it zoomed past the former planet
Nuclear explosions, space collisions, or gentle nudges from an ion beam?
The 1986 Space Shuttle tragedy killed all seven crew members, but their legacy lives on
7 vehicles that will carry humanity into orbit and beyond very soon
The revolutionary explorer gets a life extension
Blue Origin could bring Bezos's shipping empire to deep space
Two for the price of one.
We all like having options.
Should we go? Can we afford to go? All this, and more.
A slew of new startups are vying to serve the booming market for small satellites by launching small rockets more frequently and cheaply
The Japanese billionaire isn't the only one headed for the moon.
Excerpt: A Book of the Moon
It's the dawn of Martian seismology.
The next one isn't until 2033, so enjoy the pictures now
The plumes are stunning—and scientifically useful.
NASA's mission to Jupiter is brought to you by: the Sun, from 500 million miles away
What is the solar wind, anyways?
A far-out plan to create swarms of self-replicating solar panel satellites
NASA's IRIS mission publishes its first observations.
Not quite ready for takeoff
Twinkle, twinkle, little star, how I wonder where you went
The spectacular scope launches in 2019.
Divest from Russia, with love
A bigger smash solves everything.
But we won't know where it's going until the government shutdown ends.
The Great Lakes are mighty chilly.
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.
Giant planet orbits three stars at once
If there's a megastructure around Tabby's Star, this is our best shot at hearing the aliens that built it
Capturing a meteor shower takes serious photographic skill, but the results are worth the effort.
Another study fails to find evidence for E.T. around star KIC 8462852
Astronomers still have no clue what's causing this star's weird behavior
Nearly all of the water astronauts drink and shower with comes from their urine and sweat.
Many more eyes in the skies
SpaceX better watch its back
And the rockets' red glare...
Space gets a little more crowded