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99942 Apophis (provisional designation 2004 MN 4) is a near-Earth asteroid and a potentially hazardous object, 450 metres (1,480 ft) by 170 metres (560 ft) in size, [3] that caused a brief period of concern in December 2004 when initial observations indicated a probability of 2.7% that it would hit Earth on Friday, April 13, 2029.
Apophis in particular has the 2029 "keyhole" issue - it is definitely under active observation to determine whether it will pass through that area which would cause an impact in 2036. Using the guidance from article notability that "notability is not temporary", any asteroid which has been Torino Scale 1 should continue to be considered ...
Further observations eventually allowed astronomers in 2021 to rule out the possibility of an impact when Apophis makes the close flyby to Earth in April 2029. There's also no risk during another ...
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 .
A similar scenario unfolded in 2004 with Apophis, an asteroid initially projected to have a 2.7 percent chance of striking Earth in 2029. Further observations ruled out an impact. "City killer ...
Astronomers use a color-coded warning system called the Torino Scale to gauge the degree of danger an asteroid or comet presents to Earth in the next 100 years. Since the scale’s creation in ...
2006 SU 49 had a 1 in 42,000 chance of impacting Earth on 22 January 2029. By 29 October 2006, it was listed with a Torino Scale impact risk value of 0. It was removed from the Sentry Risk Table on 23 November 2006. [4] It is now known that on 28 January 2029, the asteroid will be 0.00818 AU (1,224,000 km; 760,000 mi) from Earth. [1]
A menacing asteroid named Apophis is projected to have a close encounter with Earth in 2029, but scientists have long ruled it out as an impact risk. Asteroids safely fly by Earth all the time ...