This unusual system 'shouldn't exist,' says one astronomer, who notes the orbit is as long as his daily commute. By Briley Lewis Published Aug 8, 2023 6:00 AM EDT Get the Popular Science daily ...

The eccentricity in the orbits of these black holes, detected using gravitational waves, could tell the story of their creation. When you purchase through links on our site, we may earn an affiliate ...

Could our sun have had a partner star during the early days of the solar system? A new study suggests our sun may have had a binary companion, like the system of the planet Tatooine from the original ...

A team of professional and citizen scientists has found a Neptune-like exoplanet orbiting one of two Sun-like stars in a binary system. The planet, dubbed TOI 4633 c (and nicknamed Percival), was ...

Astronomers have found the first known example of a binary star system doomed to meet its end in an explosive collision known as a kilonova, a phenomenon so rare that it’s estimated there are only ten ...