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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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.
It's a celestial gift in the middle of August. Just look up for a spectacular sight.
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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.
Astronomers used Hubble's full range of imaging to dissect wild 'fireworks' happening in two nearby young planetary nebulas.
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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
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.
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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
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
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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?
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
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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
The Geminid meteor shower is one of the year's stronger displays in terms of number and size of meteors. When's the best time to see it?
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.
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).
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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.
By Mark Mancini
A Russian cosmonaut printed some steak in space, and now we're one step closer to sending humans to Mars.