I don't understand why people are downvoting this, but up, down, left, right all depend on your frame of reference.
Up in space is nowhere, but at the same time it is everywhere. Those are not physical concepts and they require necessarily a frame of reference to even make sense.
The up quark or u quark (symbol: u) is the lightest of all quarks, a type of elementary particle, and a significant constituent of matter. It, along with the down quark, forms the neutrons (one up quark, two down quarks) and protons ... https://en.m.wikipedia.org/wiki/Up_quark
Hi there! Looks like you linked to a Lemmy community using a URL instead of its name, which doesn't work well for people on different instances. Try fixing it like this: [email protected]
the cosmological principle is the notion that the spatial distribution of matter in the universe is uniformly isotropic when viewed on a large enough scale
I was thinking up is the direction of the expansion of the universe. Not sure if this supports that or not. Or maybe since we're drawn that way, it's the opposite?