Tech & Science Researchers discover 1,004 near-earth stars that could be home to planets with life.

19:50  28 october  2020
19:50  28 october  2020 Source:   businessinsider.de

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The question of extraterrestrial life in the infinite expanses of our universe has preoccupied researchers and science fiction fans for decades. It may even be that aliens in our galaxy already know about us without our being aware of it.

In a new study, , astronomers have identified 1,004 Sun-like stars that could be home to habitable, Earth-like planets in their orbits. Every intelligent living being on this exoplanet could also recognize the earth and thus signs of life from there.

Our earth always appears as a tiny, dark spot in front of the blazing star when orbiting the sun. Thanks to this method, researchers have discovered over 3,000 other planets in the past eleven years.

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Stars up to 326 light years from Earth.

The light of a star changes as a planet passes by it. Measurements can then be used to determine how large the exoplanets are and sometimes even how the atmosphere of the planets is composed. With this method, extraterrestrials could also discover life while observing our earth - if they exist and if they also have the intelligence for this exploration.

"If we were to find a planet with life, we would also become curious and wonder whether someone is seeing us right now," says Lisa Kaltenegger, co-author of the new study, in an press release . The stars discovered in the study are up to 326 light years away from Earth. Unimaginable for us humans. In the vastness of space, however, a relatively short distance.

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The star map for the search for intelligent life

“We have just created the star map on which we should first look for intelligent life,” says Kaltenegger. The scientists analyzed the stars using a NASA catalog that the space agency uses to select targets for its Transiting Exoplanet Survey Satellite (TESS) telescope. The telescope has already searched 75 percent of our sky and discovered thousands of new planets.

  Forscher entdecken 1.004 erdnahe Sterne, die Planeten mit Leben beheimaten könnten © Provided by Business Insider Germany

In the new study, the researchers excluded stars for which no reliable data are available. So it could well be that far more than the discovered 1,004 stars exist in the "vicinity" of our earth, from which extraterrestrials could also see our planet. It is estimated that billions of stars in our galaxy had planets that could be habitable.

This article was translated from English by Klemens Handke. You can find the original here .

NASA’s Kepler Mission Discovers A World Orbiting Two Stars © Photo by NASA / JPL-Caltech / T. Pyle via Getty Images NASA’s Kepler Mission Discovers A World Orbiting Two Stars

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