New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after ...

They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

Why Information, Not Matter, May Be the True Foundation of Reality - Rethinking Reality Through Physics, Information, ...

“For the last 20 years, people believed that the cosmological constant is positive, and the universe will expand forever,” says Tye, a professor emeritus at Cornell. A positive constant acts like a ...

A physicist proposes that the universe might not be empty but act like a viscous fluid, resisting expansion. This bold idea ...

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could ...

Physicists believe the universe may exist in a fragile “false vacuum” state that could collapse at any moment. If triggered, the transition would spread at the speed of light — about 300,000 ...

The science communicator, a disciple of Stephen Hawking, believes it will be decades before we colonize Mars. But he says we ...

The surreal Oscar-nominated short about three animals discovering a mountaintop astronomical observatory blends science and ...