Because this asteroid will zoom by Earth in 2029, a detailed study of its trajectory will deliver even further restrictions on the fifth force than what Bennu could provide.

Bennu is classified as a “potentially hazardous asteroid,” meaning the object is more than 460 feet (140 meters) wide and could theoretically come within 4.65 million miles of Earth.

A series of images from NASA’s OSIRIS-REx mission show the spacecraft approach and touch down on asteroid Bennu’s surface, over 200 million miles away from Earth, to collect a sample on ...

In 2018, it arrived at Bennu, a near-Earth asteroid as wide as the Sears Tower is tall. The mission collected pieces of the asteroid and brought them back to Earth in 2023.

The Field Museum received a rare, pristine sample of asteroid Bennu from NASA — a "time capsule" from the early solar system, untouched for 4.6 billion years. Scientists will study the carbon ...