From the Skripal poisonings to the invasion of Ukraine to subverting American elections, it is hard to think of a Russian outrage Lieutenant General Vladimir Alekseyev has not been involved in. He is ...

Lt. Gen. Vladimir Alekseyev provided intelligence to the Kremlin for Russia’s invasion of Ukraine and had been penalized by the U.S. twice, including for meddling in elections. By Nataliya Vasilyeva A ...

A newly detected gravitational wave, GW250114, is giving scientists their clearest look yet at a black hole collision—and a powerful way to test Einstein’s theory of gravity. Its clarity allowed ...

I’ve yet to meet a physicist that didn’t believe in the beauty of the general theory of relativity—Einstein’s description of gravity as the curvature of spacetime. After all, it’s consistently ...

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth. Of the more ...

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational wave signal from a binary black hole merger to date, and it gives researchers ...

Jan 22 (Reuters) - Nuclear energy startup General Fusion said on Thursday it will go public in the U.S. in a deal of about $1 billion with blank-check company Spring Valley Acquisition Corp. III, as ...

There’s an adage coined by [Ian Betteridge] that any headline ending in a question mark can be answered by the word “No”. However, Lorentz invariance – the theory that the same rules of physics apply ...

MOSCOW, Dec 22 (Reuters) - A Russian general was killed by a car bomb in southern Moscow on Monday, Russian investigators said, adding that they suspected Ukrainian special services could have been ...

“It was a shock for me and our families and our friends,” his husband, Claudio Gama, told the outlet. “For more than 30 years, Tony has been my friend, my companion, my husband.” The National Academy ...

110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...

The earliest test of Albert Einstein’s general theory of relativity took place just four years after he published it. During the May 29, 1919, total solar eclipse, British astronomer Sir Arthur ...