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Live Science on MSNIn emergency decision, James Webb telescope will study 'city-killer' asteroid 2024 YR4 before its close approach to EarthIn a rare "time-critical" decision, the James Webb Space Telescope will study the true size of the "potentially hazardous" ...
Astronomers will use the Webb telescope to closely monitor the size and trajectory of an asteroid that has a slim chance of hitting Earth in 2032.
YR4 is circling Earth and NASA predicts it could strike the planet in 2032. Here's what to know about the asteroid headed toward Earth.
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