Asteroid dirt is 'fluffier' than we thought‎

The strength of gravity is different on every body in the solar system. Whether it's the crushing weight of Jupiter or the minuscule pull of a small asteroid, this fundamental force of physics still has a major impact on the material those bodies are made up of. A new paper from researchers at the University of Duisburg-Essen and the German Aerospace Center (DLR) showcases just how different it can be by letting planetary simulants freefall inside a giant drop tower and measuring how "fluffy" the space dirt got. The findings are published on the arXiv preprint server.