Edge of the Observable Universe
COSMIC HORIZON · as far as light can carry us
There is a limit to what we can ever see: light needs time to travel, so our view ends at a horizon now about 46 billion light years away, stretched wide by cosmic expansion. It is not a wall, and the universe does not stop there; an observer out there would see their own bubble, with us near its edge. Beyond it is simply mail that has not arrived yet.
🚀 Fly there in the 3D universe