The Arecibo Observatory in Puerto Rico captured a radar image of 1998 OR2, which will zoom within 3.9 million miles (6.3 million kilometers) of our planet on April 29.
The Arecibo Observatory in Puerto Rico captured a radar image of 1998 OR2, which will zoom within 3.9 million miles (6.3 million kilometers) of our planet on April 29.
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