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This is a list of asteroids that have impacted Earth after discovery and orbit calculation that predicted the impact in advance. As of December 2024 [update] , all of the asteroids with predicted impacts were under 5 m (16 ft) in size that were discovered just hours before impact, and burned up in the atmosphere as meteors .
The list below shows all approaches by potentially hazardous objects (objects which can approach Earth within 0.05 astronomical units (AU)) without atmospheric contact which have been the closest ever observed at some point in time, from the discovery of the first such object to the record holder as of February 2025.
for asteroids that will miss Earth this time round, the more accurate the orbit model is, the further into the future its position can be predicted. This allows recovery of the asteroid on its subsequent approaches, and impacts to be predicted years in advance.
While still tiny, that probability nearly doubled from the agency’s initial estimate of 1.2% in late January. At that time, NASA said that “no other known large asteroids have an impact ...
Here's what to know about Apophis and how space agencies hope to protect Earth from other asteroids like it. Apophis to make 2029 flyby to Earth Apophis is projected to pass within 20,000 miles of ...
The last time was about 20 years ago, with the asteroid Apophis in 2004, which reached a couple of percent for a brief period in time before the uncertainty region could be constrained.
Two 10-kilometre sized (6.2 mi) asteroids are now believed to have struck Australia between 360 and 300 million years ago at the Western Warburton and East Warburton Basins, creating a 400-kilometre impact zone (250 mi). According to evidence found in 2015, it is the largest ever recorded. [73]
UK scientists used hundreds of tiny fossils that lived in the sea at the time to understand climate shifts tens of millions of years ago