Using the Gemini South telescope a team of astronomers have confirmed for the first time that differences in binary stars' composition can originate from chemical variations in the cloud of ...

Castor, the second-brightest star in the constellation Gemini, is one of the most luminous stars over Earth and a key target for skywatchers, showing there is often much more to stars than meets ...

Only a few dozen of these short-lived binaries exist in the galaxy at a time, making the serendipitous find extremely ...

Astronomers from the Czech Republic and Argentina have employed the Gemini South telescope to observe a yellow supergiant star designated HD 144812. The observations found that HD 144812 is a rare ...

Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of the world's most powerful telescopes.

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

Mercury mingles with the star Mebsuta in central Gemini this evening, though you’ll need to catch the pairing shortly after sunset.

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 ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 ...

Astronomers have discovered a first: a binary star system in the vicinity of Sagittarius A*, the Milky Way's central supermassive black hole.

Astronomers confirm that differences in the chemical composition of binary stars can be traced back to the earliest stages of their formation.