After Arecibo, NASA doesn’t know what’s next for planetary radar


The massif of the Arecibo Observatory the radio telescope has collapsed; with it has become a crucial tool for understanding the risks of asteroids on Earth – and it would take serious government initiative to replace it.
Before the installation suffered irreversible damage in a series of cable failures this year, Arecibo Observatory was the most powerful planetary radar system on Earth. Astronomers can’t use radar to discover new asteroids, but the data these systems provide can give scientists the details about the size, shape, and location of an object they need to better assess and more. quickly the threat that individual asteroids could pose to Earth.


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