The asteroid Itokawa is a 'space cushion' that might soak up punishment, new research shows, a skill that's helped it survive for a surprisingly long time. I spoke to Curtin Uni researcher Fred Jourdan about the findings and what it means for planetary defense. https://www.advancedsciencenews.com/itokawa-asteroid-is-a-rubble-pile-that-could-be-tough-to-destroy/