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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.
Asteroid designation Date of impact Location of impact Method of detection Estimated size Reference 2008 TC 3: October 7, 2008: Nubian Desert in Sudan: visual, weather satellite, meteorite recovery: 4 m (13 ft) [1] 2014 AA: January 2, 2014: Central Atlantic Ocean: infrasound: 2–4 m (6.6–13.1 ft) [2] 2018 LA: June 2, 2018: Botswana/South ...
It gained some public interest when it became clear, in January 2005, that the asteroid 99942 Apophis would miss the Earth in 2029 but may go through one or another keyhole leading to impacts in 2036 or 2037. Further research has since been done, however, which revealed the probability of Apophis passing through the keyhole was extremely low. [1]
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 ...
On December 24, 2004, 370 m (1,210 ft) asteroid 99942 Apophis (at the time yet unnamed and therefore known only by its provisional designation 2004 MN 4) was assigned a 4 on the Torino scale, the highest rating given to date, as the information available at the time translated to a 1.6% chance of Earth impact in April 2029. [20]
Initially, astronomers were concerned that the space rock might impact Earth in 2029 and 2068, but subsequent observations have ruled out any risk of Apophis posing a threat to the Earth for the ...
A big one, though, can wreak havoc far beyond its initial impact site. The massive Chicxulub asteroid that 66 million years ago slammed into what is now the Yucatán peninsula in Mexico released ...
Asteroid (35396) 1997 XF 11 will pass 930,000 km (0.0062 AU) from the Earth. 2029 NASA's New Horizons spacecraft will exit the Kuiper Belt. [4] 2029 April 13 Near-Earth asteroid (99942) Apophis will pass Earth at a relatively small distance of 31,200 km (19,400 mi) above Earth's surface, closer than some geosynchronous satellites. [5] 2029 June 26