Sunday, November 27, 2022
HomeAnimals & HumansDead Arecibo telescope offers asteroid warning from beyond the grave

Dead Arecibo telescope offers asteroid warning from beyond the grave


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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