Live Science
By
October 30, 2022
After collapsing into pieces in December 2020, the mighty Arecibo Observatory has a final parting gift for humanity — and it’s a doozy.
Using data collected by Arecibo between December 2017 and December 2019, scientists have released the largest radar-based report on near-Earth asteroids ever published. The report, published Sept. 22 in The Planetary Science Journal, includes detailed observations of 191 near-Earth asteroids, including nearly 70 that are deemed “potentially hazardous” — that is, large asteroids with orbits that bring them within 4.65 million miles (7.5 million kilometers) of Earth, or roughly 20 times the average distance between Earth and the moon.
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