A binary star system is orbiting close to Sagittarius A*, the supermassive black hole at the center of our galaxy.
Astronomers have discovered the first-ever binary star system, D9, orbiting the Milky Way's central black hole, Sagittarius A ...
The NASA/ESA Hubble Space Telescope has captured a close-up look at R Aquarii, a symbiotic binary star system located around 700 light-years away in the constellation Aquarius. Red Giant and a ...