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