Nasa are set to reveal an "amazing" discovery on Thursday, according to one of the space agency's senior scientists.

Dr Alan Stern, a planetary scientist and Principal Investigator on Nasa's New Horizons Pluto mission, made the exciting announcement whilst speaking at the University of Alberta in Canada. 

Whilst speaking about the latest images of Pluto captured by the New Horizons probe, Stern said: "Nasa won't let me tell you what we're going to tell you on Thursday. It's amazing."

Last week, Nasa unveiled new images of the surfce of Pluto, which show a landscape of mountains, craters and gorges.

As reported by The Guardian, Stern said: "This world is alive."

"It has weather, it has hazes in the atmosphere, active geology... Every week I am floored."

There is no word yet on what the announcement could be, with Nasa taking the same line of secrecy as they did at their last big event - the announcement of the discovery of water on Mars.

However, a number of unknowns remain. Pluto has vast mountainous dune fields, a multicoloured surface, and a number of other mysterious features that have not been explained by science.

As reported by The Guardian, Stern said: "This world is alive."

"It has weather, it has hazes in the atmosphere, active geology... Every week I am floored."

There is no word yet on what the announcement could be, with Nasa taking the same line of secrecy as they did at their last big event - the announcement of the discovery of water on Mars.

However, a number of unknowns remain. Pluto has vast mountainous dune fields, a multicoloured surface, and a number of other mysterious features that have not been explained by science.

(The Independent)