The space rock, detected by the Panoramic Survey Telescope & Rapid Response System only three days before its remarkable flyby inside the lunar orbit, was Earth’s third near-miss incident in just nine days, according to astronomers.
“It raises a few eyebrows when we see a number of close approaching NEAs over such a short period of time,” said Slooh astronomer Paul Cox, cited by Space.com. “We’ll investigate how this could be.”