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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Is the U.S. Government Hiding New Proof of Alien Life?

The government's secret Advanced Aviation Threat Identification Program has spent millions researching UFOs and alien life. Are they covering up their findings?

The Man on the Moon Is Calling, Via the First Lunar Cell Network

In 2019, the moon will be getting its own 4G network. That could be better service than some of us have here on Earth.

Tiny Yet Mighty: Neutron Stars May Be Ravenous X-ray Dazzlers

Some neutron stars may have a pretty amazing party trick up their stellar sleeves.

The Farthest Pictures From Earth Ever Taken

New Horizons takes photo from 3.79 billion miles (6.12 billion kilometers) away from Earth.

NASA's Kepler Mission Adds 100 Alien Worlds to Exoplanet Tally

The Kepler Space Telescope seeks out small habitable exoplanets that may share similar qualities to Earth.

Are Alien Worlds in TRAPPIST-1 More Habitable Than Thought?

TRAPPIST-1 is a mini version of our solar system, and astronomers have started figuring out what life on those exoplanets might be like.

Could Dark Matter Spawn 'Shadow Life'?

You could be reading this article deep in a dark matter rainforest filled with creatures in a roaring dark matter ecosystem — but have no clue.

Falcon Heavy Launch Major Success for SpaceX

The countdown begins to send Elon Musk's most powerful rocket beyond Earth's atmosphere. Whether it will be a success is anybody's guess.

Scientists Working on Converting Human Waste Into Food for Astronauts

In space, poop is often a problem. Maybe it will be part of the solution, thanks to a study showing waste can become protein and fat.

Scientists Build Universe to Understand How Black Holes Kill Galaxies

Researchers threw the ingredients of the universe into a virtual box and let the known laws of physics bake a cosmic cake. The results are stunning.

Why a Blue Moon's Not Really Blue

The term "blue moon" dates back to at least the 16th century. Since then, it's had several different definitions, many of which are contradictory. So what's a blue moon today?

Loneliest Black Hole Hides Inside Globe of Stars

It all started with the suspicious behavior of a single star.

Chinese Insects and Plants Will Be the Next Earthlings on the Moon

The first 'manned' mission to the moon since the 1970s will be populated by bugs and plants.

Good News, Mars Colonists: Pure Water Ice You Can Dig Up With a Shovel

All those intrepid colonists are going to need a plentiful supply of water, and it turns out that accessing one may not be as hard as we thought.

Has the 'Twisted' Mystery of Fast Radio Bursts Been Solved?

The apparently random flashes in the sky known as FRBs have resisted being pinned down by astronomers. Until now.

What Did the Big Bang Sound Like?

It wasn't quite as loud as you might imagine.

What We Do — and Don't — Know About the Pentagon's Secret UFO Program

Does the U.S. government have proof there is life from other worlds visiting Earth?

Where the Most UFO Sightings Are

Are we so fixated on finding evidence of aliens that we can't see the forest for the trees?

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.

Most Distant Black Hole Discovered, But Why Is It Such a Monster?

The question is, how did it get to be so big so fast?

How Apollo 11's Crew Reacted to Lunar Conspiracy Theories

That's one small step for man ... one giant lie to mankind?

Why Galaxies Come in Different Shapes

How galaxies get their shapes and evolve is widely debated.

Robotic Camera Can Scan Entire Sky in Just Three Nights

When fully operational in 2018, the Zwicky Transient Facility robotic camera will usher in the era of big data astronomy.