Astronomers hunting for evidence of the light from the first stars and galaxies have found that the universe was warm, rather than cold, before it "lit up." ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Knowable Magazine reports that neutrinos may help explain the universe's missing antimatter, shedding light on matter-antimatter imbalance.

Here’s what you’ll learn when you read this story: A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in time, before the Big ...

“You can journey to the ends of the earth in search of success,” 19th-century Baptist preacher Russell Conwell is said to have proclaimed, “but if you’re lucky, you will discover happiness in your own ...

Neutrino oscillation is weird, but it may be weird in a useful way, because it might allow physicists to probe certain ...