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

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

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.

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

In theory, hundreds of circumbinary planets should have been detected by missions such as NASA’s Kepler and TESS space ...

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

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 ...

The team examined the remnant black hole’s “Kerr nature”, the mathematical description of a rotating black hole in general relativity. By analyzing the dominant quadrupolar mode and its overtone, they ...

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

Einstein was awarded the 1921 Nobel Prize for a theory that half of the people might not even have heard of. His Theory of ...