Produced by: Tarun Mishra
Apophis, a large asteroid measuring 340-450 meters, will pass within 37,000 kilometers of Earth in April 2029. Though visible to the naked eye, the chance of collision remains low.
Research suggests smaller asteroids could alter Apophis’s trajectory, raising concerns about future encounters. However, such collisions are considered unlikely.
Astronomer Paul Wiegert’s study estimates a 1 in 1 million chance of a smaller asteroid shifting Apophis onto a dangerous path.
ISRO is closely tracking Apophis through its NETRA system, with Chairman Dr. S. Somanath emphasizing the importance of monitoring large asteroids for potential threats.
Wiegert’s research shows that impacts from small objects would need precise conditions to significantly change Apophis’s trajectory, making such events improbable.
Discovered in 2004, Apophis initially raised alarm due to its size and orbit. A 2021 flyby reassured scientists there’s no immediate threat for at least 100 years.
Though 2029 poses no danger, scientists are exploring deflection strategies in case future passes in 2036 or 2068 show any risk.
ISRO and global agencies continue to monitor near-Earth objects, with plans to collaborate on potential mitigation efforts if threats arise.