Physics

An academic casts light on what it means when the sun goes dark.

Newly discovered particle was predicted to exist by the Standard Model of particle physics.

Astronomers discover hypervelocity stars originally came from a dwarf galaxy orbiting the Milky Way.

New experiments are showing the universe is even more complicated than we thought, and may not even have a single age.

Scientists' observations could help us understand what could happen to our own galaxy in the future.

Hawking said we need to leave within 500 years "if humanity is to continue for another million years."

Scientists show the big bang is still our best theory of how the universe began.

"From your native country one cannot expect—in the foreseeable time—a more reasonable political attitude," he wrote of the U.S.

"Bringing science to the people brings people into science. This matters to me, to you, to the world as a whole," Hawking has said of the award.

Einstein predicted that gravity and light could be used to calculate the mass of a star. But he never thought scientists could actually do it.

The ripples in space-time were first predicted by Einstein more than 100 years ago.

Scientists have long tried to explain the origin of a mysterious, large and anomalously cold region of the sky—and a new study opens up a pretty wild possibility.

Researchers have never before witnessed this phenomenon, akin to a microscopic black hole.

Since HG Wells imagined humans traveling in time with technology, literature has inspired science. Will time travel be possible one day?

The theory breaks with the popular idea that expansion is caused by dark energy and suggests energy for expansion would never run out.

Earth's magnetic field has reversed periodically throughout the planet's history. Now, we're a little closer to understanding why.

Thirty-three scientists refuted the suggestion the universe began with a big "bounce" rather than a big bang.

"People think of time travel as something fictional. But, mathematically, it is possible."

Physicists say proton collisions can result in a large number of particles containing strange quarks—findings that challenge current theoretical models.

Physicists say negative mass experiments will help solve mysteries of the cosmos.

Thanks to an enormous telescope network, scientists are now pushing the frontiers of what we know about the universe.

The composite image of 23,000 galaxy pairs was created through a technique called weak gravitational lensing.

Scientists have solved an age-old problem.

A new exhibition at the Fitzwilliam Museum in Cambridge displays a restored image of Adam and Eve naked in a medieval primer.

Scientists expect to see many more black holes, as well as supernovas, neutron stars and possibly dark matter in coming years.

Floating gold and platinum cubes could record colliding universes right after the Big Bang.

"This [was] truly a scientific moon shot, and we landed on the moon."

Ironically, the flat-earth myth has historically been used to demonize religion and to lionize scientists.

Similar bubbly-implosions have been claimed to lead to nuclear fusion.

Physicist Brian Greene explains why the world is actually kind of like a garden hose.