Zeta Reticuli is approximately 39 lightyears away, it takes about 234 years to reach the system.
No.
Zeta Reticuli (ζ Ret, ζ Reticuli) is a Binary_starsystem located about 39 Light-year(12 Parsec) away from Earth. It is located in the constellation Reticulum, and is visible to the unaided eye in very dark skies. Because of the southerly location of the system, it is not visible north of the Tropics.
They've been living on Zeta Reticuli since 2007.
The Zeta Reticuli binary star system is located 39.17 light-years, or 230,265,762,450,700.25 miles (That's 230 trillion miles) away from the Earth. At that distance it would take a Saturn V rocket 1,072,165.5 years to travel there.
If you are talking real world (and not some game) then we have no evidence that Aliens exist so we can not tell you where they come from.
The reason is because these beings live on a world which has two suns shining on it. The Zeta Reticuli star system is a binary system. In actual fact, the greys do not have black eyes but rather normal eyes with dilated pupils. The black outer layer is actually a pair of lens used to protect the eyes of the greys from the large amount of UV rays radiated from the two suns.
Epsilon Reticuli b was created in 2000.
It wouldn't because Nibiru is a hypothetical planet first concocted by Nancy Lieder who apparently had a brain implant!! from the Zeta Reticuli!! to warn of the disaster - the first one in 2003 (Oops did I miss that disaster?)
Nope, its just on Greek. Zeta Beta Tau is real
Zeta is the sixth letter of the Greek alphabet.
Zeta One was created in 1969.