Large Asteroid Apophis to Make Record Close Flyby in 2029

An asteroid designated 99942 Apophis, approximately 340 meters in diameter, will make an exceptionally close flyby of Earth on April 13, 2029. At its closest approach, it will pass within 31,000 kilometers of Earth's surface—closer than geostationary satellites—and will be visible to the naked eye across much of Europe, Africa, and Asia. The event is described by astronomers as a 'once-in-a-millennium' opportunity for scientific observation, as such a large asteroid passes this close only once every 1,000 years on average. NASA and other space agencies plan to study the asteroid's composition and trajectory during the flyby to refine planetary defense models. No impact risk exists for this pass, but the data will inform future deflection strategies.

Global Impact

The 2029 Apophis flyby has significant scientific and public engagement implications. It will provide unprecedented data on asteroid composition and orbital mechanics, advancing planetary defense capabilities.