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Asteroid to Fly Inside Satellite Ring!
6 Apr
Summary
- Asteroid Apophis will pass closer than Earth's satellites.
- It's as large as the Eiffel Tower, a mountain-sized object.
- Scientists confirm near-certainty of no impact in 2029.

In April 2029, the asteroid 99942 Apophis will perform an unprecedented close approach to Earth. It will pass within approximately 32,000 kilometers of our planet's surface, entering the orbit of geostationary satellites. This event, occurring on April 13, 2029, is not expected to result in an impact, with scientists confirming a near-certainty of no collision. The asteroid, named after the Egyptian god of chaos, measures over 450 meters at its widest point, exceeding the height of the Eiffel Tower.
Apophis is a stony, S-type asteroid with a distinctive peanut-like, bi-lobate shape, a remnant from the solar system's formation. As it nears Earth, the planet's gravitational pull will exert tidal stress, potentially altering its surface and spin. This close encounter will also permanently shift Apophis's orbit from an Aten-class to an Apollo-class path around the Sun. Despite its massive size and close proximity, current tracking data eliminates impact scenarios for at least the next century.
Visibility of Apophis will be remarkable, with apparent magnitude 3.1 making it visible to the naked eye from rural areas in India and with best views across Europe, Africa, and Western Asia. Its movement will be observable in real-time, traversing the sky at up to 42 degrees per hour. NASA's OSIRIS-APEX and the European Space Agency's Ramses missions are preparing to study Apophis before and after its 2029 flyby, aiming to understand tidal effects and beneath-surface composition, contributing to planetary defense efforts.