NASA’s Efforts to Identify Near-Earth Objects and Mitigate Hazards

Posted on June 12, 2021Comments Off on NASA’s Efforts to Identify Near-Earth Objects and Mitigate Hazards

Scientists classify comets and asteroids that pass within 28 million miles of Earth’s orbit
as near-Earth objects (NEOs). Asteroids that collide and break into smaller fragments are
the source of most NEOs, and the resulting fragments bombard the Earth at the rate of
more than 100 tons a day. Although the vast majority of NEOs that enter Earth’s
atmosphere disintegrate before reaching the surface, those larger than 100 meters
(328 feet) may survive the descent and cause destruction in and around their impact sites…
https://oig.nasa.gov/audits/reports/FY14/IG-14-030.pdf