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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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How Old Is Earth and How Did Scientists Figure It Out?

In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.

Uranus: The Planet on a Very Tilted Axis

Uranus is the seventh planet from the sun and sits on an axial plane tilted at a jaw-dropping 97.7-degree angle. And yes, Uranus does actually stink.

NASA and SpaceX Set to Make History With Manned Space Launch

For the first time since 2011, NASA will launch astronauts into space from U.S. soil. It will also be the first time ever a private company will get them there.

This Star Survived Being Swallowed by a Black Hole

A new kind of survival story: Scientists discovered a star that came near a black hole and lived to tell the tale – at least temporarily.

New Kaleidoscopic Map Details the Geology of the Moon 

The moon has seen a lot in its 4.5 million years of life, and a detailed new geologic map serves as testament.

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.

Space Lettuce Is Out of This World Good

Lettuce has key nutrients that give both astronauts and Earth-dwellers alike a physical and psychological boost. And the lettuce grown in space is no less nutritious than the Earth-bound variety.

NASA's Astronaut Beach House Is a Little-known Gem of Space History

NASA's historic Beach House on Cape Canaveral is the last place many astronauts visit before they blast off into space. Today it's full of mission memories and NASA artifacts.

NASA's Chief Sniffer's Job Is to Keep 'Stinky' Situations Out of Space

Nobody's nose knows better than NASA's George Aldrich. He's the longest-serving member of the space agency's odor panel, which basically sniffs and smells everything that goes up into space.

Saturn: Giant Rings and a Moon Full of Space Lakes

Saturn is the sixth planet from the sun and the second largest planet in the solar system. It has an amazing ring system and 82 moons! And did we mention that it's an oblong world that appears squished looking?

Felicette, the First Feline in Space, Finally Gets Her Due

In the early days of the space race, several animals went into orbit, including dogs, chimps and one intrepid cat. Who was this forgotten feline from the French space program?

New Solar Orbiter Will Get the First Glimpse of the Sun's Poles

NASA and the European Space Agency's new Solar Orbiter will travel as close as 26 million miles to the sun to get the first glimpses of its north and south poles.

Neptune: An Ice Giant With Supersonic Winds

Neptune is the eighth planet from the sun, and one of the coldest. It also has supersonic winds that are the fastest in the solar system.

How the International Space Station Works

In 1984, President Ronald Reagan had a vision for a permanently inhabited space station. Today that vision is a reality we know as the International Space Station.

Why Is the North Star So Stellarly Important?

Polaris, also known as the North Star, is almost exactly over the celestial North Pole, making it extremely useful for navigation (and for making wishes on, as well).

Leonid Meteor Shower: What You Need to Know

The annual Leonid meteor shower is back, and peaks in the early-morning hours of November 18. It's made up of tiny bits of debris from the comet Tempel-Tuttle. Here's how to see it.

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.

Venus: Earth's Blazing-hot and Bizarre Twin

The atmospheric pressure is crushingly extreme on Venus, and lead would melt into a puddle on its surface. But as hellish as this place sounds, it actually has a lot in common with Earth.

3-D Printed Space Meat: It's What's for Dinner, Astronauts

A Russian cosmonaut printed some steak in space, and now we're one step closer to sending humans to Mars.

Jupiter: Anatomy of a Gas Giant

Jupiter is the largest planet in the solar system. Big as it is though, next to the sun, Jupiter looks puny.

Is Planet Nine Actually a Primordial Black Hole?

As the search for Planet Nine wears on, and astronomers have yet to get so much as a glimpse of it, researchers are pondering what else the object might be.

Confirmed: Comet Borisov Is Another Interstellar Visitor

The galaxy has sent another tumbling chunk of frozen interstellar material our way.

Apollo 11 Put the First Men on the Moon. What About Missions 12-17?

You know Apollo 11. But what did the other Apollo missions accomplish after Neil Armstrong made his giant leap for mankind?

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.

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