The hunt for aliens has been given a big boost after a breakthrough discovery on Saturn.
The hunt for alien life has been given a big boost
Phosphorus, an element that is "essential" to life, has been found on the gas giant's moon Enceladus in a major development to human understanding of other worlds.
Enceladus is one of the best hopes for discovering extraterrestrial life as it has a global ocean underneath its ice crust.
David Rothery, a professor of planetary geosciences at The Open University, believes that the moon has "all the ingredients" for alien life to be able to live without sunlight.
Professor Rothery said: "Because the presence of phosphorus is essential for life as we know it, it makes Enceladus a more likely prospect.
"It's one of six key elements - along with carbon, hydrogen, nitrogen, oxygen and sulphur - needed to sustain life. Particles which were analysed suggest there could be 'hydrothermal vents', a fissure releasing heated water."