By studying galaxy clusters separated by hundreds of millions of light-years, Penn physicist Patricio Gallardo and ...

In what the team describes as the largest-scale probe of gravity to date, they found that the force weakens with distance ...

While humans and animals are limited by their physiology, muscle development, and age as to how fast they can naturally run, ...

Physicists have used the Atacama Cosmology Telescope to prove that gravity follows the rules of Newton and Einstein across light-years ...

The concept of spacetime, first described in Einstein's theory of general relativity, has since been widely studied by many ...

Cosmic viewer The Atacama Cosmology Telescope in Chile was used by the team to observe gravitational interactions between ...

The ISS uses filtration, distillation and catalytic reactors to purify wastewater into safe drinking water for astronauts.

A dead star's remnants are pulsing every 20 days, offering strong evidence for Einstein's theory of frame-dragging. This ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” That line, attributed to Richard ...

“With so many unanswered questions, gravity remains one of the most fascinating areas of research,” Patricio Gallardo, one of ...

Penn physicist Patricio Gallardo and collaborators tracked the speeds of distant galaxy clusters to test the strength of gravity across hundreds of millions of light-years. The verdict? Gravity neatly ...

Scientists have tested gravity across some of the largest structures in the universe and ...