Astronomy

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.

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It's Only a Rolling Rock on Mars (But I Like It)

NASA just named a rolling rock on Mars after — who else — the Rolling Stones.

Ploonets: When Moons Become Planets

Did you know that a moon can leave its orbit around a large planet and go out on its own?

Rare Asteroid Discovered With Fastest Orbit Around the Sun

Researchers at the Zwicky Transient Facility have found an asteroid in Earth's orbit. And this one has the shortest year yet.

Why Does Jupiter Have 79 Moons When Earth Just Has One?

Scientists recently found 12 more moons revolving around Jupiter, bringing its total to 79. Why does Jupiter have so many darn moons? Is there any advantage to that?

Why Are Planets Almost Spherical?

Why not cylindrical? Or even cube-shaped?

Worm, Strawberry, Blue: Every Full Moon Has a Name

Everyone's heard of the blue moon and the harvest moon, but did you know every full moon of the year has a name? What are the names and when do the moons occur?

Want to Find Past Life on Mars? Dive Deep Into Earth First

The mysterious microbes living more than half a mile beneath the deepest ocean floors could have something to teach us about Martian life.

White Dwarfs Can Shred Planets to Pieces

So what does that mean for good ol' Earth someday?

The Truth Behind the Rogue Planet Nibiru

The idea of planet Nibiru has captivated doomsday prophets and conspiracy theorists for decades, but nobody has proven its existence. What's the deal?

NASA's InSight Mission Detects Its First Marsquake

The wait is over. NASA confirms Mars is seismically active.

The Lyrid Meteor Shower Is Back — Here's What You Need to Know

Every April, the Lyrid meteor shower fills the sky with 'shooting stars.' Here's how to see them.

The Superb Moon Quiz

In the darkness of space, we’re comforted by our moon, the circular inspirer of song lyrics, poetry, and wannabe astronauts. But what do you really know about the moon and its history? Take this quiz to find out.

Hunting for Martians in the Most Extreme Desert on Earth

Rovers are getting some practice hunting for microbes here on Earth before they head to Mars in 2020.

Our Milky Way Is Warped Like an Old Vinyl Record

It's tricky to see the true shape of the Milky Way when you're stuck inside it. So how did scientists figure it out?

Saturn's Rings Will Exist for Just a Blip in Time

No worries though. Jupiter, Neptune or Uranus could create their own beautiful, bright ring display in the distant future.

Does the Sun Rotate?

Like Earth, the sun does rotate, but in a different way.

After the Sun Dies, It'll Become a Stellar Crystal

Those stars twinkling in the nighttime sky may actually be crystal spheres. And our beloved star is headed in that direction, too. Eventually.

Orion Nebula Is Scene of Epic Star Battle

In this stellar nursery, firstborn stars are ruthless.

Chinese Spacecraft Lands on the Far Side of the Moon

The China National Space Administration makes history — and shows the world the dark side of the moon.

This Is a First: An Image of the Sun's North Pole

The image, which was created by the European Space Agency, shows the blazing hot orb's northern-most region for the very first time. Pretty cool stuff.

NASA's InSight Will Probe Mars' Quakes, Temperature and Wobble to Understand Its Origins

After cruising 300 million miles and spending seven months in space, the InSight spacecraft successfully touched down on Mars' surface. How awesome is that?

Heads Up: Massive Dark Matter Hurricane Passing Earth

Dark matter is the most mysterious (and possibly important) material in the universe, and scientists are excited that a storm of the stuff is upon us.

The Milky Way Is a Cannibal

A stunning accusation has been made: About 10 billion years ago, a small galaxy strayed too close to ours, so our galaxy ate it.


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