Asteroid ZTF0DxQ – officially labeled 2020 QG – now holds the record for the closest flyby of Earth. It swept just 2,000 miles (3,000 km) from Earth’s surface, or about a quarter of the diameter of Earth itself.
This asteroid, which moves at a speed of 12.4 kilometers per second, was identified 6 hours after its passage. “The asteroid approached undetected from the direction of the Sun,” Paul Chodas, director of NASA’s Center for Near Earth Object Studies, told Business Insider .
This celestial object about 3 m wide was spotted during a survey of the sky carried out by the Palomar Observatory in California. When 2020 HQ passed close to Earth, it was 132 times closer to us than the Moon .