Washington, July 3 (ANI): Pluto's two smallest known moons have now been finally named following an Internet poll carried out in February 2012.
Formally referred to as "P4" and "P5," the two moons are now known as Kerberos and Styx respectively, Fox News reported.
The campaign received almost half a million votes from all over the world.
Kerberos is a three-headed dog in Greek mythology and Styx is the mythological river separating the living world from the dead.
Pluto's perviously known moons are also named for Greek and Roman mythological characters.
Another popular name for the moons was "Vulcan," after the home planet of William Shatner's Star Trek character.
Both names were approved by the International Astronomical Union (IAU) who considered the name Vulcan, but rejected it because it has already been used in astronomy.
Scientists plan on getting a closer look at Kerberos and Styx in 2015, when the first spacecfraft to fly through the Pluto system takes flight. (ANI)