Stunning views show the snow-covered dunes on the edge of the Sahara Desert — an area known to be one of the hottest places on Earth.
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Apollo 17 astronaut Jack Schmitt wishes NASA had brought a bigger moon rock to the December 2017 signing ceremony for Space Policy Directive 1.
The newfound sheets are buried by just a few feet of Martian dirt in some places, meaning it might be accessible to future crewed missions.
Researchers have shown that space travel puts a powerful, dangerous squeeze on the fragile tips of optic nerves.
NASA's Mars rover Curiosity has found intriguing structures on Mars that look like tiny, fossilized worm burrows — but mission team members aren't claiming that the finds are evidence of life.
A new NASA mission, the first to hitch a ride on a commercial communications satellite, will examine Earth's upper atmosphere to see how the boundary between Earth and space changes over time.
E.T. has nothing to do with the bizarre dimming events of the mysterious object known as Tabby's star, a new study reports.
Scientists have discovered out-of-this-world minerals at the site of a 60 million-year-old meteorite impact on Scotland’s remote Isle of Skye.
Astronomers will soon get another look at the big, ghoulishly weird space rock that buzzed Earth on Halloween three years ago.
A NASA satellite captured an image showing a thick curtain of brown smoke billowing from the Thomas Fire in Southern California yesterday (Dec. 14).
Data gathered by satellites circling Earth since 1997 come together in a breathtaking time lapse of our dynamic planet.
Astronauts who spend prolonged time in space experience noticeable changes to their brain's structure, a new study finds.
A city-size lava tube has been discovered on the moon, and researchers say it could serve as a shelter for lunar astronauts.
Mounting evidence suggests it's hard to imagine our solar system without the unseen world dubbed Planet Nine.
Who were the people who inspired the names for NASA's Cassini spacecraft and the European Space Agency's Huygens probe?