Astronomers traced a mysterious radio signal repeating about every 80 minutes to a compact system containing a magnetized ...

Astronomers have confirmed the first known four-star system where two separate binary pairs not only eclipse themselves but ...

In addition to a recent solar eclipse and upcoming lunar eclipse, astronomers have discovered a system of four stars that ...

Add Yahoo as a preferred source to see more of our stories on Google. In a binary star system, two stars orbit around each other. ESO/L. Calçada, CC BY Stars are the fundamental building blocks of our ...

More than 70% of massive stars are born in close binary systems, where gravitational tugs and mass transfer between companions dramatically alter their evolution. Yet once the interaction ends—whether ...

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It may not be anything like Tatooine of Star Wars, but this discovery is still incredible. We’ve found a frozen, rocky planet orbiting one of its two parent binary stars in a stable Earth-like orbit.

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 long ...

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Although our Sun is the only star in our solar system, that isn't the case for every planetary system. It's estimated that about than half of stars could be binaries, though the exact percentage is ...