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For a few months last fall, a school-bus-size space rock named 2024 PT5 gained fame as Earth’s new “mini-moon.” Astronomers rushed to study the object while it was still close enough to Earth to observe in detail. Now, one team has concluded that 2024 PT5 is a chunk of the real moon. The rock was … Read more

In a post on X on Tuesday evening, Elon Musk said President Trump had asked his rocket company SpaceX to bring home “as soon as possible” two NASA astronauts who have been on the International Space Station since June. SpaceX, in fact, is already scheduled to bring those two astronauts home, but no earlier than … Read more

You may hear about a large asteroid headed toward Earth. Don’t panic. Just after Christmas Day, astronomers spotted something zipping away from Earth: a rock somewhere between 130 feet and 330 feet long that they named 2024 YR4. Over the next few weeks, they simulated its possible future orbits. They now say, based on the … Read more