Science is Fun Fridays!
CNEOS, NASA's Center for Near-Earth Object Studies, monitors the sky for potential hazards. As we started a new year, four asteroids were detected.
At least two of those are Apollo asteroids, which are near-Earth, and have a semi-major axis greater than 1 AU (astronomical unit, roughly the distance from the Earth to the Sun).
Aten asteroids, which the other two were, are also near-Earth but have a semi-major axis less than 1 AU.
Asteroid 2020 AD was expected to pass about 556,000 miles away - the moon is 238,855 miles away.
Next on approach is Asteroid 2019 UO.
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