Space

Explore the vast reaches of space and mankind’s continuing efforts to conquer the stars, including theories such as the Big Bang, the International Space Station, plus what the future holds for space travel and exploration.

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Hungry 'Hot DOG' Eats Nearby Galaxies, Fattens Its Black Hole

And this hot DOG's ferocious appetite shows no signs of slowing down.

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.

Discovered! Icy Super-Earth at Barnard's Star, Our Sun's Neighbor

But you can forget about Barnard's Star b bearing any resemblance to our planet.

Communicating With Aliens Is Hard. Communicating With Alien AI Could Be Harder

If you think about it, it'll likely be an alien machine that encounters our probes searching for intelligent life. How's that going to work?

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.

Is China Launching Fake Moon a Bright Idea?

The idea behind the "fake" moon is to provide extra illumination to Chengdu, a city in China's Sichuan province. What could possibly go wrong?

What Are Moonmoons?

Can a moon have a moon of its own?

Space Community Vows to Bounce Back After Soyuz Mishap

With the Russian Soyuz spacecraft officially out of commission, what does that mean for space exploration? And more importantly, the crew on the International Space Station?

Pluto: Is It a Planet After All?

Back in 2006, the International Astronomical Union decided to demote Pluto to the status of a dwarf planet. A new historical study challenges that designation.

How NASA Works

When most people think of NASA, they probably think of astronauts and the Kennedy Space Center. But there's a whole lot more to this 60-year-old organization.

Two Moon Craters Named for Apollo 8 Astronauts

Anders' Earthrise and 8 Homeward are the two moon craters recently named in honor of the 1968 Apollo 8 mission, the first NASA mission to orbit the moon.

'The Goblin' May Reveal the Phantom of Planet X Lurking in Deep Space

It's a small world with an astonishingly long orbit around our sun. And it could lead us to the fabled Planet X.

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

Every autumn, Earth passes through a stream of debris left by Halley's comet, resulting in nighttime meteor showers in mid-October. Best time this year is Oct. 21-22.

Where's That Funky-shaped Comet 'Oumuamua From?

It dashed through our solar system like a cigar-shaped signal from another star system. But which one? Astronomers are on the case.

SpaceX Books Its First Private Passenger to the Moon

A Japanese billionaire art collector is the lucky ticket holder and he plans to invite a few artists to tag along — for free.

Nuclear Pasta Is the Super-Macaroni of the Universe

This stellar noodle is the strongest material in the cosmos!

Just Four Dimensions in the Universe, if You Believe Gravitational Waves

Maybe there aren't more dimensions beyond the four that we know and love so well.

The Great Red Spot May Expose Jupiter's Watery Secret

Jupiter has been notoriously bad about revealing any water deep in its thick atmosphere. That's changing though.

Heads Up Stargazers! Two Comets Passing Close to Earth in September

Comet 21P and comet 46P will swing past our planet during the month of September — and you won't need a telescope to see either.

Can We Get Into Space Without Big Rockets?

Visionaries have proposed various ways to get into space without using large rockets for propulsion, such as building a space elevator or harnessing magnetic levitation.

Mysterious Fast Radio Bursts Are Starting to Pile Up

Fast radio bursts are over in less time than it takes to blink your eye. They come from way beyond the Milky Way. And astronomers can't say with certainty what causes these enigmatic bursts.

Tiny Satellite to Search Universe for Missing Matter

The tiny HaloSat probe will investigate a galactic halo of hot gas that may account for missing matter from the early universe.

How Close Can We Get to the Sun?

NASA is launching its new Parker Solar Probe and it will get closer to the sun than any other spacecraft in history. But could we actually touch the sun some day?

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

It's a celestial gift in the middle of August. Just look up. At night.


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