Ever since a trip through a wormhole was first portrayed in 2001: A Space Odyssey 50 years ago, the idea of them has captured the public imagination. And small wonder: they’re the ultimate form of cosmic travel: a way of zipping across galaxies in an instant.
https://www.sciencefocus.com/space/...vel-through-a-black-hole-into-another-galaxy/
https://www.sciencefocus.com/space/...vel-through-a-black-hole-into-another-galaxy/