How will Earth's gravity affect the asteroid Apophis in 2029?

During its 2029 flyby, Earth's gravity will unevenly stretch the asteroid Apophis, altering its rotation and potentially causing landslides of loose surface material.

When is the asteroid Apophis expected to pass Earth?

The asteroid Apophis is scheduled to pass within approximately 20,000 miles of Earth on April 13, 2029.

What is the significance of the Apophis asteroid flyby?

The Apophis flyby is significant as it allows scientists to observe a large asteroid being reshaped by gravity, serving as a test case for planetary defense and offering unique observational opportunities.

Home / Science / Asteroid Apophis to Reshape in Earth's Gravity!

Asteroid Apophis to Reshape in Earth's Gravity!

20 Apr

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Summary

Earth's gravity will reshape Apophis during its 2029 flyby.
The asteroid's spin and surface will be disturbed measurably.
A 2029 flyby will bring Apophis within 20,000 miles of Earth.

Asteroid Apophis to Reshape in Earth's Gravity!

On April 13, 2029, the asteroid Apophis, approximately 1,230 feet wide, will pass within 20,000 miles of Earth. During this close encounter, Earth's gravity will significantly distort the asteroid's structure, an event researchers predict will reshape Apophis. This gravitational tug will unevenly stretch the asteroid, affecting its motion and surface.

The imbalance in gravitational pull between the near and far sides of Apophis is expected to alter its rotation and dislodge loosely bound material. Models suggest these disturbances will occur within hours of the closest approach, potentially revealing fresh scars or slides and exposing cleaner material beneath the regolith.