NASA and the European Space Agency predict asteroid 99942 Apophis will pass close to Earth in 2029 without impacting the planet [1], [2].
This finding provides critical certainty for planetary defense planning by ruling out a collision for the next 100 years [1]. The analysis allows scientists to shift their focus from immediate threat mitigation to studying the asteroid's characteristics during its rare proximity.
The asteroid, which measures 340 meters in diameter [1], is scheduled to make its closest approach on April 13, 2029 [2]. During this event, Apophis will travel approximately 31,000 kilometers from the center of the Earth [1]. This distance is closer than the orbit of many artificial satellites currently circling the globe [1].
NASA and the ESA have tracked the object to update risk assessments and refine planetary defense strategies [1], [2]. While the asteroid has previously earned a reputation as a feared object, the latest data indicates there is no significant risk of impact within the next century [1].
The close flyby presents a unique opportunity for astronomers to observe a large near-Earth object up close. Because the asteroid will be so near, researchers can analyze its composition, and the effects of Earth's gravity on its trajectory, without the danger of a collision [1], [2].
“Asteroid 99942 Apophis will pass extremely close to Earth in 2029 but will not impact the planet within the next century.”
The elimination of Apophis as a century-long threat transforms a potential disaster scenario into a scientific windfall. By confirming the asteroid's trajectory, space agencies can utilize the 2029 flyby as a live-fire test for observation technologies and gravitational modeling, which is essential for defending Earth against other undetected objects in the future.
