Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of ...

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational ...

The sharpest black hole collision ever detected just gave Einstein another win—and raised hopes that the next one might rewrite gravity.

One such mystery, described in a recent paper in The Astrophysical Journal Letters, concerns circumbinary exoplanets—or rather, the shortage thereof—in the now 6,000+ exoplanets confirmed to date.

Astronomers have long faced a strange contradiction: most stars are born in pairs, and ...

LIGO's GW250114 signal tests Einstein's relativity, revealing black hole properties and confirming key theorems in ...

Learn why only 14 out of over 6,000 exoplanets orbit two stars, and how Einstein’s general theory of relativity may be to blame.

Albert Einstein won the 1921 Nobel Prize in Physics, but not for relativity—the theory that made him famous. This article ...

Splitting and recombining an electron wave packet has been used to test relativity at a record sensitivity. The result heralds an era of precision measurements of relativity using quantum-information ...

Tim is the Co-founder and CEO of Relativity Space, the first autonomous rocket factory and launch services leader for ...

3D-printing rocket builder Relativity Space closed a $500 million round of new capital which CEO Tim Ellis said now gives the company a "war chest" to further advance its technology. "This really ...

Rocket builder and 3D-printing specialist Relativity Space is raising $500 million of fresh capital in a new round being led by Tiger Global Management, people familiar with the financing told CNBC on ...