We thought planets are built as huge boulders smash together. But if it is pebbles instead, that better explains why planets all spin the same way
Source:
https://www.newscientist.com/article/mg24332404-200-tiny-pebbles-may-be-the-reason-most-planets-spin-in-the-same-direction/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home