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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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Why Cassini Crashed: Protecting Icy Moon Enceladus at All Costs

The groundbreaking Saturn mission has come to an end, protecting Saturn's moon in its final plunge.

Cassini Spacecraft Will End Its Mission by Crashing Into Saturn

In what's being called its 'grand finale,' the probe that's been orbiting Saturn for 13 years is taking its victory lap as it runs out of fuel.

Forty Years Later, Voyager 1 Is an Interstellar Trailblazer

Forty years and counting! Can Voyager 1 make it another 10?

New NASA Images Reveal Snowy Martian Dunes

Drop your keys and grab your skis. There's fresh Martian powder out there, as new NASA photos reveal in stunning detail.

Massive Asteroid Passing Near Earth in September, But Don't Freak Out

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.

Astronaut Pee and Yeast Could Revolutionize Our Future in Space

When you're packing for space, you have to think about how every single item onboard can be reused repeatedly. And that includes your pee.

Don't Toss Your Eclipse Glasses — Give Them a Second Life Instead

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.

Spectacular Solar Eclipse Leaves U.S. in Awe

The first total solar eclipse to cross the United States in almost 100 years leaves the country mesmerized.

Hottest Gas Giant Ever Discovered May Be Evaporating to Death

A newly discovered exoplanet is hotter than most stars, and may be possibly disintegrating because of it.

Deep in the Heart of Our Galaxy, Einstein Proved Right Again

Hints of Einstein's general relativity have been detected in a black hole "laboratory" smack in the center of the Milky Way.

An App for Visually Impaired People to Experience the Total Solar Eclipse

After all, it's not just the light that changes when the moon passes in front of the sun.

NASA Gets Ready to Punch an Asteroid in 2022 With DART Mission

And don't worry. Even if NASA misses, we'll be fine.

Imagining a Colonized Mars With Marshall Brain

Can you imagine living on Mars? It's hard for some, but HowStuffWorks founder Marshall Brain has a new book that discusses the idea in depth.

Small Towns Brace for Big Eclipse Crowds on Aug. 21

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.

Moon Base Builders Rejoice: More Water in the Moon Likely

All of a sudden that longed-for moon base doesn't seem quite so far-fetched.

What Does a Total Solar Eclipse on Earth Look Like From Space?

Check out this video of what astronauts in space see as the shadow of the moon crosses our planet.

There's Never Been an Alien Civilization on Mars, Congressman

The red planet has been extremely inhospitable for a very, very long time. Why would a congressman think differently?

Total Solar Eclipse on Aug. 21, 2017: When, Where and How to See It

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.

The Fermi Paradox: Are We Alone in the Universe?

We know our universe is massive, but how can we be sure we are actually alone in it?

Uranus' Magnetosphere Is Pretty Strange

Everyone's favorite ice giant is weird in more ways than one.

Anonymous Claims NASA Is About to Announce an Alien Discovery. Sadly Not

Everybody wants to find aliens, even the hacktivist group Anonymous.

Ancient Impacts Blasted Out Giant Sideways Tornadoes, Shaping the Surface of Mars

Brown University researchers have found evidence that in its distant past, Mars experienced 500-mph cyclones that rolled sideways across the planet's surface.

Small, Alien Worlds Come in Two Flavors: Super-Earths and Mini-Neptunes

Get ready for a new branch in our galaxy's planetary family tree.

Elon Musk Lays Out Plans to Colonize Mars

Could humans really colonize Mars within the next 50 years? Elon Musk seems to think so.

Triple Star System Could Be a Stellar Cocktail Shaker for Life

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.

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