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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.
Yes, astronomers point to asteroid 99942 Apophis, 1,099 feet wide and first identified in 2004. According to NASA officials, at the time of its initial sighting, Apophis was one of the most ...
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]
The only objects on the Torino scale that have ever ranked higher are asteroids 99942 Apophis, which had a rating of 4 for four days in late 2004, the highest recorded rating; (144898) 2004 VD 17, with a historical rating of 2 from February to May 2006; and 2024 YR 4, with a rating of 3 from January 27, 2025 to February 20, 2025. [1]
In a bit of ominous news befitting a Friday the 13th: It turns out that the asteroid Apophis could have a very small chance of colliding into Earth in five years, when it is expected to make a ...
The asteroid, previously known as 99942, is estimated to be around 1,100 feet wide and was only discovered in 2004. At the time, Apophis was thought to be on a trajectory toward Earth.
99942 Apophis: 0.3: June 19, 2004: First asteroid to rank greater than one on the Torino Scale (it was ranked at 2, then 4; now down to 0). Previously better known by its provisional designation 2004 MN 4. 152830 Dinkinesh I Selam: 0.22: November 1, 2023: First satellite discovered to be a contact-binary (433953) 1997 XR 2: 0.23: December 4, 1997
The asteroid was named 99942 Apophis. Vadim Sadovski/Shutterstock. According to NASA, an asteroid, 99942 Apophis., will come within 20,000 miles of the Earth on April 13, 2029.