The new findings come from the Dark Energy Spectroscopic Instrument (DESI), which sits on a telescope at the Kitt Peak ...

With me, you got Executive Orders, without me, no order! Einstein: Your hair is great, but you just have to comb it more like mine! Without me, you got no relativity. With me, you got relativity!

For decades, astronomers have relied on Einstein’s theory of relativity to explain the expansion of the universe, assuming ...

Spending nearly 10 months stranded in space might sound like a nightmare for the body—loss of muscle mass, weakened bones, ...

Physicists may need to come up with a new theory for how the universe works, after a dark energy experiment has produced confounding results.

Before it shut down, a telescope in Chile captured the universe's baby photos, just 380,000 years after the Big Bang. These ...

Looks like we’re closer than ever to connecting general relativity and quantum mechanics. A new study suggests that when we ...

Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

A blackboard at a U.K. university is believed to be the only one of its kind that has both Albert Einstein's scientific notations and his signature.

The relationship between quantum mechanics and classical physics has baffled scientists for decades. In the quantum world, ...

2409.04296, CC-BY 4.0) A counterintuitive result from Einstein’s special theory of relativity has finally been verified more than 65 years after it was predicted. The prediction states that objects ...

Einstein's theory of general relativity suggests that the "memory" of ancient events, such as black hole mergers, may be etched into the fabric of space-time by gravitational waves. New research ...