An asteroid about the size of a bus gave Earth a close shave this morning (Oct. 2), cruising well inside the orbit of the moon.The roughly 26-foot-wide (8 meters) space rock, known as 2017 SX17, zoomed within 54,100 miles (87,065 kilometers) of our planet at 6:20 a.m. EDT (1020 GMT) today. For perspective, the moon orbits Earth at an average distance of about 239,000 miles (284,600 km).
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Source: Bus-Size Asteroid Zooms by Earth in Close (But Harmless) Encounter
