So gravity is awesome. It keeps my ass in my chair and my beer in the bottle (provided I hold it right side up). But why is it there? What causes it? Just things having mass? I've searched it up and all I got were ambiguous "We don't know"'s or "That's just how the universe works"'s.
Does anyone else know more on this subject? Is there even anyone studying this stuff?
Does anyone else know more on this subject? Is there even anyone studying this stuff?