Researchers at the space agency believe they have discovered vital clues that appeared to indicate that primitive aliens could be living on the planet.
They have discovered that life forms have been breathing in the planet’s atmosphere and also feeding on its surface’s fuel.
"If these signs do turn out to be a sign of life, it would be doubly exciting because it would represent a second form of life independent from water-based life on Earth.”
Professor John Zarnecki, of the Open University, added: “We believe the chemistry is there for life to form. It just needs heat and warmth to kick-start the process.
“In four billion years’ time, when the Sun swells into a red giant, it could be paradise on Titan.”
They warned, however, that there could be other explanations for the findings.