All right — so maybe not everything, but this expertly crafted animation is easily one of the most lucid and entertaining introductions to gravitational forces we've ever come across. Too busy to watch the five minute crash course? (You're not; just watch it.) Here's the upshot: everything is attracted to everything else, but we're still not sure where this attraction stems from.
Written and narrated by award-winning math and science teacher Jon Bergmann, this video is the latest installment in the ever-growing series of open access TED-Ed videos, an online education initiative geared toward "capturing and amplifying the voice of the world's greatest teachers." Read more about it here.