How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, ...

One of these designs, known as a Centrifugal Nuclear Thermal Rocket (CNTR), uses a centrifuge to turn uranium fuel into a ...

Universal Orlando opened three hotels this year in concert with its new Epic Universe theme park. Here’s how they stack up.

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem inconsistent with each other or don’t quite line up. And in other cases the rules ...

The universe's vastness challenges human comprehension. It contains trillions of galaxies and countless stars. Pluto's ...

Can we journey through time? Sci-fi author Dete Meserve presents a compelling case for our future in the past.

“In the universe, an absolute vacuum is rare, and most of the universe is very low-density high-temperature plasma,” said Chris Impey, an astronomer at the University of Arizona. “In principle, sound ...

“That’s the Pinwheel galaxy,” I said. The name is derived from its shape – albeit this pinwheel contains about a trillion ...

The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on ...

A curious question sparked a cosmic deep dive into why light never tires—even after 25 million years on the move.

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Scientists have discovered the most powerful blasts of energy in the known universe. Dubbed extreme nuclear transients, or ...