NASA has announced via press release that they have discovered another 100 exoplanets orbiting stars in our galaxy.

Back in 2009 NASA launched a mission called Kepler with a mission to locate exoplanets similar to Earth that may be habitable for life as we know it. They do this by finding planets by stars and measure how close the planet is to the star. To close and it will be too hot, to far and it will be an icy wasteland. This is what is known as the "Goldilocks zone." They also look at the size of the planets. Too big and it will likely be a gas giant.

Kepler went offline more than two years ago due to technical difficulties, but has now been brought back online and is continuing the search for habitable planets and one day maybe life on another world.

With Kepler back online NASA could possibly find thousands more in a relatively short period of time as they have said they believe there could be around a billion Earth-like exoplanets in the Milky Way alone.

Image Credit AUR