Newly discovered asteroid 2007 HA is flying past Earth today about 2.5 million kilometers away. It’s big (300 meters wide), bright (13th magnitude), and an easy target for large backyard…
Newly discovered asteroid 2007 HA is flying past Earth today about 2.5 million kilometers away. It’s big (300 meters wide), bright (13th magnitude), and an easy target for large backyard…
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