A THIRD of bigger planets outside our solar system are likely to have water, researchers say — boosting the chance of finding alien life.
Up to half the weight of those between two and four times the size of Earth could be liquid or frozen water.
Handout The findings have come NASA’s Kepler Space Telescope
The findings come from a computer model of their structure created by analysing data from the Kepler Space Telescope, launched in 2009, and the Gaia space observatory, launched in 2013.
Lead researcher Dr Li Zeng, of America’s Harvard University, said: “It was a huge surprise to realise that there must be so many water-worlds.”
“Their surface temperature is expected to be in the 200 to 500 degree Celsius range.