Sources: USA Today
A 1 m near-Earth asteroid is discovered before falling as a harmless bolide over central Ontario, Canada, at 08:27 UTC. It is the sixth asteroid to be discovered before impacting Earth. 2022-11-19
JAXA space probe "Hayabusa2" delivers the first ever subsurface asteroid samples to Earth. The capsule, containing a small amount of material from Apollo asteroid 162173 Ryugu, landed in the Australian outback. 2020-12-5
Boulders are discovered on the Bennu asteroid by NASA's OSIRIS-REx spacecraft, which is expected to collect samples from the asteroid's surface later this month. 2020-10-10
NASA's "Dawn" spacecraft exhausts all of its hydrazine fuel propellant and without a functioning maneuvering system enters into uncontrolled motion around dwarf planet Ceres, thus ending its 11-year mission. 2018-11-1
Hyperbolic asteroids A-2017 U7 and A-2018 C2 are announced, although their orbit suggests they are not interstellar in origin. 2018-03-4
Asteroid 3122 Florence, which is roughly 2.7 miles (4.4 kilometers) wide, comes within 4.4 million miles (7 million km) of Earth — approximately 18 times the distance from our planet to the Moon. 2017-09-1
Research shows that the Chelyabinsk meteor was the remnants of an asteroid that collided with another asteroid 290 million years before entering the Earth's atmosphere over Russia in February of last year. 2014-05-23
Scientists report Chinese deep-space probe Chang'e 2 successfully took a series of images of the asteroid 4179 Toutatis during flyby on 13 December. 2012-12-16
NASA observes the asteroid YU 55 as it makes a close Earth flyby, passing within 0.85 lunar distances (about 201,700 miles) of the Earth. YU 55 is approximately 400 m across, and is the largest asteroid to make a close pass since 1976. 2011-11-8
Forty-one scientists publish a paper in "Science" affirming that the Cretaceous–Paleogene extinction event, the large-scale mass extinction of dinosaurs and other lifeforms on Earth ~65.5 million years ago, was caused by an asteroid impact. 2010-03-4