Astronomy is a broad discipline covering all facets of astrophysics. In this section you can learn about the origins of the universe, black holes and other astronomical phenomena.
Icy Comets Orbiting a Star Like Our Sun Spotted for the First Time
The Hitomi Satellite Briefly Glimpsed the Universe, Then Died — What Happened?
The Monster Star That Refuses to Die: Could Antimatter Be Fueling Its Supernovas?
Early Earth Pelted By Way More Debris Than Scientists Thought
When our planet was young, it took a beating from an unrelenting storm of planetesimals falling from the skies. Some of that debris meant more gold for the planet.
By Ian O'Neill Dec 11, 2017
It's the first interstellar rock we've ever found!
By Ian O'Neill Nov 22, 2017
How galaxies get their shapes and evolve is widely debated.
By Mark Mancini Nov 22, 2017
This isn't your run-of-the-mill supernova.
By Ian O'Neill Nov 17, 2017
The annual Leonid meteor shower is back, and peaks the in the early-morning hours of November 17 and 18. It's made up of tiny bits of debris from the comet Tempel-Tuttle.
By Patrick J. Kiger Nov 13, 2017
Neither massive planets nor tiny stars, brown dwarfs are entirely different substellar curiosities that possess qualities of both.
By Ian O'Neill Nov 8, 2017
Why not cylindrical? Or even cube-shaped?
By Mark Mancini Oct 30, 2017
Things are getting a little more interesting out in Pluto's neighborhood.
By Jesslyn Shields Oct 20, 2017
Get ready for the most powerful electromagnetic explosion the universe has ever known.
By Ian O'Neill Oct 19, 2017
Every autumn, Earth passes through a stream of debris left by Halley's Comet, resulting in nighttime meteor showers in mid-October.
By Patrick J. Kiger Oct 16, 2017
Drop your keys and grab your skis. There's fresh Martian powder out there, as new NASA photos reveal in stunning detail.
By Chris Opfer Aug 28, 2017
On Friday, Sept. 1, a large asteroid named Florence will zip by at a distance of about 4.4 million miles (7 million kilometers) — a tiny distance relative to the entirety of the universe.
By Patrick J. Kiger Aug 25, 2017
You probably have several pairs of eclipse glasses left over from the big total solar eclipse. Don't trash them — recycle, reuse or donate them instead.
By Sarah Gleim Aug 23, 2017
The first total solar eclipse to cross the United States in almost 100 years leaves the country mesmerized.
By Sarah Gleim Aug 22, 2017
After all, it's not just the light that changes when the moon passes in front of the sun.
By Tracy Staedter Aug 7, 2017
And don't worry. Even if NASA misses, we'll be fine.
By Ian O'Neill Aug 3, 2017
Small towns in Idaho, Nebraska and Illinois are trying to figure out how to handle an unknown number of eclipse-trippers. Estimates range from 40,000 to 80,000 visitors.
By Dave Roos Jul 27, 2017
All of a sudden that longed-for moon base doesn't seem quite so far-fetched.
By Ian O'Neill Jul 25, 2017
Check out this video of what astronauts in space see as the shadow of the moon crosses our planet.
By Christopher Hassiotis Jul 25, 2017
The total solar eclipse will be visible across North America on Aug. 21. Here's some information on how to view it safely, and what scientists may learn from it.
By Patrick J. Kiger Jul 17, 2017
Everyone's favorite ice giant is weird in more ways than one.
By Jonathan Strickland Jun 28, 2017
Brown University researchers have found evidence that in its distant past, Mars experienced 500-mph cyclones that rolled sideways across the planet's surface.
By Patrick J. Kiger Jun 26, 2017
Astronomers have discovered a life-giving chemical in a star system located 400 light-years away. Now we just have to wait and see what arises from the cosmic mix.
By Ian O'Neill Jun 20, 2017
New Jupiter information gathered by NASA's Juno space probe is in, and it reveals that the solar system's biggest world has surprising features that may alter our concept of how gas giants work.
By Patrick J. Kiger Jun 7, 2017
A beautiful ribbon of light in the nighttime sky is generating a lot of talk — and some mystery, too.
By Ian O'Neill Apr 26, 2017
Bollards, or How Cities Are Protecting Their Public Spaces From Terrorism
Mountain Heights Are Always Changing
'Man Flu' Could Be a Real Thing