Is space infinite? Here are 5 expert opinions

We’ve known for some time now our universe is expanding, and in recent years discovered this was happening considerably faster than we’d expected. Yet despite momentous innovations in telescope and satellite technology, it’s thought much of what’s out there in the cosmos lies beyond our line of sight — beyond the “observable universe”, as it’s called. It also means we don’t know with any certainty what shape the universe as a whole takes &md