There's no lightsabers or planet-killing super-weapons (yet), but the latest season of the 'Rogue One' prequel shows what the ...

From Elizabeth Olsen to Dominic West, these 10 actors nearly starred in Game of Thrones—see who almost ruled Westeros before ...

From 'Space: 1999' and 'Battlestar Galactica' to 'UFO' and 'Mork & Mindy,' the 1970s might be the best decade of sci-fi TV ...