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There are 300 million habitable planets: NASA



It goes without saying that the Earth has had better days.

So if you’re fed up with the movie climate change, presidential elections and the increasingly existent threat of nuclear war, there may be about 300 million other options for setting up a house, according to data. New data was collected by the National Aeronautics and Space Administration’s Kepler Space Telescope.

From 2009 to 2018, Kepler explored the remote regions of our galaxy in search of alien planets. In particular, the Earth-sized, rock-based planets orbit a sun-like star and our orbits are at roughly the same distance. Kepler’s travels have revealed the potential for billions of planets in the Milky Way beyond the nine in our solar system. It also provides images of other life-supporting blue planets.

Now, an updated analysis of the retired telescope findings, published in the Journal of Astronomy, offers a more accurate snapshot of the habitable worlds. In a “conservative”

; estimate, NASA researchers believe that at least 50% of all sun-like stars have terrestrial planets that have the potential to be water. More optimistic patterns predict 75%.

“Kepler told us that there are billions of planets, but now we know a good part of those planets may be rocky and habitable,” said Steve Bryson, lead author of the study. said in a statement on the NASA site. “Although this result is far from final and water on the planet’s surface is just one of many factors to support life, we have calculated [that] These worlds are in common with such high reliability and precision. “

Their aim in this study is to establish a more thorough equation for determining viability, by examining the relationship between the distance of an alien planet and the temperature of its parent star. it, as well as the amount of light energy the star emits.

Data from the European Space Agency’s Gaia mission is key.

Co-author Ravi Kopparapu said: “We have always known simply how habitable a planet’s physical distance from a star is, so that it is not too hot or too cold, forcing us to out a lot of theories. “Gaia’s data on the stars has allowed us to look at these planets and their stars in a whole new way.”

“Not all stars are the same,” said Kopparapu. “And so are all the planets.”

New calculations suggest there are at least four habitable planets relatively close to Earth, 20 to 30 light-years away from us – an impossible figure for humans, sure, but makes sense for a scientist.

“Knowing how common different types of planets are,” said co-author Michelle Kunimoto, “is valuable for designing upcoming alien-searching missions.

The more accurately they can identify these qualifying worlds, the more successful the discovery of alien planets is. And we’ll need that data if we hope to get out.

“Surveys of small, capable planets that live around stars like the sun will depend on results like these to maximize their chances of success,” Kunimoto said.


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