A research team has used both archival Hubble Space Telescope data and new observations to precisely measure the binary star system NGC3603-A1. One star weighs about 93 times the mass of our sun, ...

Scientists have uncovered the existence of a binary star system close to the black hole near the center of the Milky Way galaxy.

Binary star orbits are oriented randomly. Sometimes, it happens that a telescope’s line of sight aligns with the plane a binary star system orbits on.

A binary star system caught in the earliest stages of formation is giving astronomers clues as to why solar systems that circle double stars may be altogether different than our own.

NASA artistic image of a binary system of a red giant star and a younger companion. Blue supergiants may be formed by two stars in a binary system merging. Casey Reed, NASA ...

What happens when a planet defies every expectation of how worlds are supposed to form and move? In the nu Octantis system, astronomers have confirmed the existence of a planet that orbits in the ...

For the first time, astronomers have spotted a rapidly spinning neutron star that is gravitationally bound to a helium star companion. The discovery of this unusual binary system helps confirm a ...

An astronomer at Lowell Observatory led a study that measured the properties of a binary star system for the first time.