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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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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 to See the Spectacular Geminid Meteor Shower
Prepare to be dazzled!
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.
Here's the Buzz on Alcohol in Space
While alcohol consumption is not completely alien to the space program, not much is known about its effects on the body outside our atmosphere.
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?
NASA's Dragonfly Rotorcraft to Explore Saturn's Giant Moon Titan
Titan is the only moon in the solar system with much of an atmosphere, and the only one known to have liquid rivers, lakes and seas on its surface.
How Area 51 Works
Less than 100 miles from Las Vegas, is the most famous secret military installation on the planet: Area 51. For decades, the U.S. government refused to acknowledge it existed. But now, the secret is out.
Apollo 11 One Giant Leap For Mankind
We’re celebrating the 50th anniversary of Apollo 11’s historic journey to the moon.
LISA: Detecting Exoplanets Using Gravitational Waves
The planned Laser Interferometer Space Antenna, or LISA, will be able to detect the gravitational waves generated by massive collisions in the deep cosmos.
Quiz: Apollo 11, the First Moon Landing
Let's see how much you know about Neil Armstrong, Buzz Aldrin, Michael Collins and the adventure that immortalized them.
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.
Can a Helicopter Fly on Mars? NASA Says Yes
NASA has built a lightweight robotic helicopter capable of flying in the thin atmosphere of Mars.
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