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There was no reason for alarm, as a NASA engineer called it "one of the closest approaches by a known near-Earth object ever recorded." It was only 2,200 miles above the Earth's surface.
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Around 7:30 p.m. ET Thursday, asteroid 2023 BU will pass 2,200 miles above the southern tip of South America. NASA says no need to panic — the asteroid has no chance of hitting Earth.
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The Giant Metrewave Telescope in India captured that faint signal — coming from 8.8 billion light years away. Researchers say that receiving the signal is like reading a message from the past.
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NPR's Mary Louise Kelly talks with Maria Valdes of Chicago's Field Museum about a fresh haul of meteorites she and other scientists collected in Antarctica.
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The retired astronaut, who was the second person to walk on the moon, announced his marriage to Anca Faur.
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Stumped astronomers are trying to get to the bottom of the origins of a huge cloud of gas, or nebula, recently discovered floating near the Andromeda galaxy.
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Short Wave's scientist in residence Regina Barber talks with NASA astronaut Josh Cassada about daily life on the International Space Station.
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The All-Domain Anomaly Resolution Office, formed last year, is focusing on some 171 cases — including some in which objects "appear to have demonstrated unusual flight characteristics."
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NASA and Russia's space agency said Wednesday that they're planning to send up an uncrewed Soyuz spacecraft to the International Space Station to replace the one that sprung a leak in December.
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Astronomer Jackie Faherty outlines the most exciting sky events you can put on your calendar in 2023, from eclipses to meteor showers and more.