Researchers at UC-San Diego have engineered a negative-pressure gravity suit that could slow or even prevent the ravages of microgravity on astronauts' bodies suffered during extended spaceflight.

Two physicists at the University of Sussex have made a startling discovery about black holes: they exert a pressure on their environment. Previously, black holes were believed to have a temperature ...

Negative pressure is a rare and challenging-to-detect phenomenon in physics. Using liquid-filled optical fibers and sound waves, researchers have now discovered a new method to measure it. In ...

The universe doesn't just blow—sometimes it sucks. The Romantic poet John Keats once defined a state of mind wherein a person "is capable of being in uncertainties, mysteries, doubts, without any ...

For decades, scientists have dismissed the idea of reactionless propulsion—the concept of generating thrust without expelling propellant—as a fantasy that defies the laws of physics. But Charles ...