Why the northern and southern lights don’t always look identical
On a clear night, people near the poles might see colorful light wafting across the sky. New research could explain why these auroras don't look the same to everyone .
WATCH: 2019’s only total lunar eclipse
The eclipse began Sunday night, Jan. 20. You don't need to call it a ‘super blood wolf moon.'…
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Trump’s new plans for missile defense may spark arms race, critics say
Since the end of the Cold War, the U.S. has built missile defenses primarily to counter rogue states. President Trump on Thursday expanded the program's ambition, including calling for updated space technology. Officials say the new policy responds to Russian…
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What China hopes to gain from unprecedented lunar mission
China has become the first country to land a probe on the far side of the moon, in territory previously untouched. The move signals China’s intent to broaden space exploration for purposes of both military achievement and scientific discovery. Miles…
On this New Year’s Day, NASA has a special reason to celebrate: Its spacecraft New Horizons has made a successful flyby of Ultima Thule, an object orbiting in space about four billion miles from Earth. Science correspondent Miles O’Brien joins…
It's been 50 years since NASA’s critical Apollo 8, the first manned spacecraft to leave Earth, orbit the moon and return. The bold and risky mission paved the way for the moon landing seven months later, at a time when…
The Pentagon's new Space Command is an effort to advance the military's vast operations in space that could cost as much as $800 million over the next five years.
Thursday's supersonic flight takes Virgin Galactic closer to turning the long-delayed dream of commercial space tourism into reality. The company aims to take paying customers on the six-passenger rocket, which is about the size of an executive jet.
Comet 46P/Wirtanen is expected to make an appearance Dec. 14 to 19 that may well be visible even to the naked eye. Photo by Suchart Kuathan/via Getty Images…
