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99942 Apophis (provisional designation 2004 MN 4) is a near-Earth asteroid and a potentially hazardous object with a diameter of 370 metres (1,210 feet) that caused a brief period of concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April 13, 2029.
Mar 26, 2021 · Watch on. This animation depicts the orbital trajectory of asteroid 99942 Apophis as it zooms safely past Earth on April 13, 2029. Earth’s gravity will slightly deflect the trajectory as the 1,100-foot-wide (340-meter-wide) near-Earth object comes within 20,000 miles (32,000 kilometers) of our planet’s surface.
Apophis is a near-Earth asteroid that was once considered a potential impact hazard, but is now ruled out for at least a century. Learn about its radar observations, its 2029 flyby, and the OSIRIS-APEX spacecraft mission to study it.
Apr 12, 2024 · Learn about the asteroid Apophis, which was once feared to collide with Earth in 2029 and 2036, but is now known to be safe. Find out how astronomers studied and tracked this space rock, and when and where you can see it in the sky.
Mar 27, 2021 · 27 March 2021. NASA. Nasa said the Apophis asteroid no longer poses a threat to Earth within the next century. Earthlings can breathe a sigh of relief after US space agency Nasa confirmed the...
Feb 15, 2023 · Sept. 22, 2022. Apophis was discovered in 2004. After calculating its potential orbits, astronomers were startled to realize it had a 3% chance of hitting Earth in 2029. In a nod to its...
On 13 April 2029, asteroid Apophis will come within 32 000 km of Earth’s surface. It will be the closest approach of an asteroid of this size that humankind has ever known about in advance. During the approach, Apophis will be significantly affected by Earth’s mighty gravity.
