A message from the future sounds like science fiction, until someone starts asking how many bits it could actually carry.

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

Something of interstellar origin is descending on Pittsburgh. On 2003’s “In Keeping Secrets of Silent Earth: 3,” New York ...

Rogue planet moons habitable for 4.3 billion years without any star? A new LMU and Max Planck Institute study shows tidal ...

Warning: Spoilers follow for Masters of the Universe.

NASA’s Europa Clipper and ESA’s JUICE captured opposite sides of interstellar comet 3I/ATLAS at the same time, revealing strange chemistry inside it.

The 10 best sci-fi movies of all time, according to Letterboxd users, includes some titles you'd expect -- and a few that may ...

Steven Spielberg revealed to Empire magazine (via Total Film) on his "Disclosure Day" press tour that he was attached to direct "Interstellar" for only a year before dropping out and being replaced by ...

So why is NASA launching fewer telescopes and planetary science missions than it did a quarter-century ago? The answer is ...

LeBron James #23 of the Los Angeles Lakers speaks to the media during a press conference after the game against the Oklahoma City Thunder in Game ...