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PLANETARY SCIENCE
Volunteers, AI bag 1000 asteroids
An army of 11,400 citizen scientists joined forces with artificial intelligence (AI) to spot more than 1000 previously unknown asteroids. In 2019, researchers led by the European Space Agency enlisted volunteers to peruse more than 37,000 images taken by the Hubble Space Telescope over nearly 20 years. Because the exposures were 30 minutes long, asteroids appear as curved lines or streaks. The volunteers spotted more than 1000 of…