Apophis to Pass Close to Earth in 2029

The asteroid 99942 Apophis, known as the 'God of Chaos,' will make an exceptionally close approach to Earth on April 13, 2029, passing approximately 32,000 kilometers from the surface—closer than many geostationary satellites Source: elcaribedr. Despite its proximity, NASA has ruled out any impact risk for at least the next 100 years Source: excelsiormx.

Visibility

Observers in Europe, Africa, and parts of Asia may see Apophis with the naked eye under dark skies, with up to 2 billion people potentially able to witness it Source: elcaribedr. The asteroid will appear as a bright, fast-moving point of light, unlike a shooting star Source: excelsiormx.

Size and Composition

Apophis has a mean diameter of about 340 meters, with its longest axis reaching up to 450 meters Source: elcaribedr. It is an S-type asteroid composed of silicates and metals, and its shape resembles a peanut or elongated egg Source: excelsiormx.

Risk Assessment

Initially, early observations suggested a 2.7% impact probability for 2029, but refined radar measurements from Arecibo and Goldstone eliminated that threat Source: elcaribedr. NASA's Osiris-Apex mission will monitor Apophis during its flyby to study any gravitational effects Source: heraldomx.

Broader Context

NASA expert Humberto Campins emphasizes that while individuals have nothing to fear, humanity must prepare for future asteroid impacts over long timescales Source: diariolibree. The DART mission in 2022 demonstrated kinetic deflection, a key planetary defense technique Source: heraldomx.