New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.

Russia's state-owned Rosatom announced a prototype plasma engine which could speed up travel to other planets.

A must-see attraction is the Museum of the History of the Baikonur Cosmodrome, located in the heart of the facility. It ...

While the midair explosion of the SpaceX's Starship rocket made for an unsuccessful flight test it also made for an unforgettable optical experience in the Caribbean. The launch marked the seventh ...