Centuries before anyone pointed a telescope at the sky, Isaac Newton figured out how gravity works. He showed that any object ...

(via Sabine Hossenfelder) White holes are theoretical bodies in physics that are basically time-reversed black holes, meaning instead of permanently trapping matter inside themselves, they release it ...

Science fiction is full of amazing space phenomena. Some of those phenomena have gone from theory to reality — like black holes and pulsars. But what about wormholes? These portals through space are ...