Video: Does NASA know about all the asteroids?
Does NASA know about ALL the asteroids?
We know about the vast majority of larger ones and none of those pose a threat, but space is big, so we're always on the lookout. NASA asteroid expert Dr. Amy Mainzer explains.
Provided by Science@NASA
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Video: Does NASA know about all the asteroids? (2021, September 23)
retrieved 16 July 2024
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