Trivia: What is the closest star system to Earth?
Aldebaran
Draco
Alpha Centauri
Ursa Minor
The correct answer is Alpha Centauri
So why is this answer correct? : The name Alpha Centauri might sound familiar to fans of “Lost in Space,” where it was a safe haven planet for extraterrestrial travelers. The real-life Alpha Centauri is a triple star system that is closer to Earth than any other star in the galaxy, besides the sun. Alpha Centauri A and Alpha Centauri B are the two largest stars and are 4.35 light-years from Earth. Alpha Centauri C, also known as Proxima Centauri, is 4.25 light-years away.