Christmas 'Hippo' Asteroid Is Buzzing Earth, Its Closest Flyby in 400 Years - Space.com
 

Christmas 'Hippo' Asteroid Is Buzzing Earth, Its Closest Flyby in 400 Years Space.comA small asteroid is flying safely by Earth Saturday (Dec. 22) and according to the folks at NASA, it looks just like the mighty hippo in new radar images.
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