Bumpy Bennu

Asteroid Bennu: Massive rocks unlock secrets of the universe

Thermal images explain why Bennu looks like this.

by Jennifer Walter

The asteroid Bennu is an anomaly.

Its diamond-like shape and scraggly texture give it a memorable appearance — and make it a curious object for scientists to study.

NASA

It’s also extremely old and hasn’t changed much since it formed nearly 4 billion years ago.

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