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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NASA is sending astronauts to the moon as soon as 2024. And they'll have 4G cell service when they get there.
Even if you've never looked through a telescope, you've probably seen Vega, one of the brightest stars in our galaxy. In fact, thousands of years ago, Vega was our North Pole star, and will be again in the future.
Every autumn, Earth passes through a stream of debris left by Halley's comet, resulting in nighttime meteor showers in mid-October. The best time this year is Oct. 21.
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When you think about space travel, you probably don't take the time to wonder how astronauts go to the bathroom. However, the annals of aeronautic history abound with space bathroom tales. Here are 10 of our favorites.
By Stephanie Watson
Star-gazers gasped when they saw how much Betelgeuse dimmed in 2019 and the reason wasn't clear. Even though it's back up to full strength, how long will it be before it explodes? We haven't seen a supernova in over 400 years.
For decades Bob Lazar talked about a mysterious element 115 that supposedly could power alien spacecraft. People thought he was a nut but scientists discovered element 115 in 2003. Was there any connection?
Other companies, like Amazon and Telesat, are planning to emulate StarLink's model, meaning there could soon be as many as 50,000 satellites, mostly for the purpose of internet service, floating around in space.
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It's a celestial gift in the middle of August. Just look up for a spectacular sight.
The Perseverance rover will explore Mars' Jezero Crater, gathering rock samples which may prove that life once existed on the red planet.
Comet NEOWISE comes by only once every 6,800 years. But it will be visible to anyone with binoculars or even to the naked eye. Here's how to spot this rare event.
Watching meteor showers can be a spectacular sight. We talked to some astronomy experts on how to improve your meteor-viewing experience.
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Astronomers used Hubble's full range of imaging to dissect wild 'fireworks' happening in two nearby young planetary nebulas.
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.
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.
By Mark Mancini
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.
By Mark Mancini
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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.
The moon has seen a lot in its 4.5 million years of life, and a detailed new geologic map serves as testament.
Every April, the Lyrid meteor shower fills the sky with shooting stars. Here's how to see them in 2021.
By Mark Mancini
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.
By Katie Carman
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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.
By Mark Mancini
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.
By John Donovan
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?
By Mark Mancini
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?
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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.
By Mark Mancini
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.
By Mark Mancini