Rubble-pile asteroids are giant ‘space pillows’ that live forever

Diamond is forever? Tell that to an asteroid with lots of debris.

The asteroid Itokawa is a 1,640-meter (500-foot) pile of rock debris. Some call it peanut-shaped; Some say it resembles a sea otter, with a head, neck and body. Whatever Itokawa may look like, new research suggests it’s staying intact — despite the constant bombardment of asteroids inside. solar systemsince it formed more than 4.2 billion years ago. The proposal could be important for any future project aimed at conservation The world from a debris-laden asteroid, researchers argue.

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