Asteroid Apophis to Make Historic Close Approach to Earth in 2029

Asteroid 99942 Apophis, named after the Egyptian deity of chaos, is set to make a close approach to Earth on April 13, 2029. The asteroid will pass approximately 20,000 miles (32,000 kilometers) from Earth's surface, closer than many geosynchronous satellites. This event will be visible to the naked eye from parts of Europe, Africa, and Asia, weather permitting.

Discovered in 2004, Apophis initially raised concerns about potential Earth impacts in 2029, 2036, or 2068. However, subsequent observations have ruled out any risk of impact for at least the next 100 years.

Measuring approximately 370 meters in diameter, Apophis is a relic from the early solar system, composed primarily of silicate materials with some metallic nickel and iron.

The 2029 flyby presents a unique opportunity for scientific research. Space agencies and scientific institutes worldwide plan to observe Apophis using ground-based telescopes and spacecraft to study its physical properties and the effects of Earth's gravity on its trajectory.

During the approach, Earth's gravity is expected to alter Apophis's orbit, transitioning it from an Aten-class orbit to an Apollo-class orbit. This change will affect its orbital period and trajectory around the Sun.

The close passage of Apophis in 2029 will allow astronomers to gain valuable insights into near-Earth objects and improve planetary defense strategies.