Tech & Science Researchers discover 1,004 near-earth stars that could be home to planets with life.
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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, 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. 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.
Long-Lost Tectonic Plate Discovered Hundreds of Miles Below Canada
Whether or not the "Resurrection plate" ever existed has long been a hot topic of debate in the field of geology. Tectonic plates are vast slabs of the planet's crust, which are in constant, albeit very gradual, motion. Regions where these plates meet tend to be seismically and volcanically active. Geologists have long known that there were two tectonic plates—called Kula and Farallon—at the beginning of the Cenozoic Era (66 million years ago to the present day) in the Pacific Ocean off the western coast of North America.
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.
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.
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