"Modelling of planet Gliese 581d shows it has the potential to be warm and wet enough to nurture Earth-like life, scientists have said. It orbits a red dwarf star called Gliese 581, located around 20 light years from Earth, which makes it one of our closest neighbours." - Brian Sullivan

"Getting to the planet would still require a sci-fi breakthrough in travel for earthlings. A spaceship travelling close to light speed would take more than 20 years to get there, while our present rocket technology would take 300,000 years." - Brian Sullivan