Limitless Space Institute compares the travel time of spacecraft propelled by nuclear power to that of imaginative fusion ...

Rocks from outer space are constantly hurtling toward Earth, slamming into the atmosphere and often exploding into fireballs that both delight and alarm people.

Researchers at the University of Konstanz have uncovered a new mechanism of sliding friction: resistance to motion that ...

What if the biggest change in warp-drive research is not speed, but credibility? For decades, the idea sat in an awkward place between Einstein’s equations and televised starships. Miguel Alcubierre’s ...