But could humans or spacecraft ever reach Alpha Centauri, the closest star system to our planet? Alpha Centauri is about 4.4 ...

The closest star system to the Sun is the Alpha Centauri system. Viewed face-on, grand spiral galaxy NGC 5643 has a festive appearance in this colorful cosmic portrait. This rare structure is known as ...

"By studying Omega Centauri -- a remnant of a dwarf galaxy -- we have been able to refine our methods and take a step forward in understanding whether such black holes exist and what role they ...

All visible stars are within our galaxy, the Milky Way ... Driessen suggests Alpha Centauri as a safe bet. Located just four light years away, Alpha Centauri is the closest star system to Earth.