The research was based on data provided by the Kepler Space Telescope, which examined the universe for eight years.
Launched in 2009, Kepler’s goal was to find out how many exoplanets are in our galaxy.
NASA scientists say our galaxy contains at least 300 million potentially habitable planets. According to the results of a study published at the end of October, half of the stars with temperatures similar to that of the Sun, could have rocky planets, which in turn could have water and therefore life.
“Although this result is far from a final value and the water on a planet’s surface is only one of the many factors that support life, it is extremely exciting that we have calculated these worlds. Said Steve Bryson, a researcher at NASA’s Ames Research Center in California. Silicon Valley.
The researchers say their study is based on the most conservative estimates and note that the number of potentially habitable planets could be much higher.
“We want to be very conservative in case nature has surprises in terms of habitability. So we are intentionally reducing the estimates, ”said Ravi Kumar Kopparapu, a researcher at NASA’s Goddard Space Flight Center in Greenbelt and one of the report’s authors.
NASA says some of the potentially habitable exoplanets discovered by the Kepler Space Telescope could be Earth’s interstellar neighbors, and at least four of them are within 30 light years of the Sun. Scientists say the closest exoplanet to Earth is about 20 light years from us.
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