Scientists identify 1,000 stars from where ‘aliens’ can get a good gander at life on Earth. As the researchers have scrambled to search for alien life, scientists have identified more than 1,000 nearby stars that, they say, are positioned to get a good perspective on Earth.
The study lead, Lisa Kaltenegger, has said that if the researchers (or aliens) were out there searching for life known to man, they would see indications of the biosphere on planet Earth.
“On the off chance that observers were out there searching [from planets orbiting these stars], they would be able to see indications of a biosphere in the atmosphere of our Pale Blue Dot,” Lisa Kaltenegger was quoted as saying by Space.com, adding that some of these stars can be seen from Earth without telescopes or binoculars.
What does it mean?
In the event that there’s anyone up there on the planets orbiting these stars, they can see us, observe us and may have been able to “detect life” on Earth!
Scientists Lisa Kaltenegger and Joshua Pepper have identified 1,004 primary succession stars, like the Sun, that may have Earth-like planets in their own habitable zones and that have an away from of sight to observe compound traces of life on Earth, by seeing Earth as a transiting exoplanet.
The study has been published in ‘Which Stars Can See Earth as a Transiting Exoplanet?’ “We ask, from which stellar vantage points would a distant observer be able to search for life on Earth similarly?” Lisa Kaltenegger inquires.
Exoplanet is a planet which orbits a star outside our solar system.
So far, astronomers have detected more than 3,000 transiting exoplanets. In fact, Nasa’s Transiting Exoplanet Survey Satellite (TESS) mission (Ricker et al. 2016) has already searched about 74 per cent of the sky in its two-year primary mission for transiting extrasolar planets, including potentially habitable worlds orbiting the closest and brightest stars.
The two researchers, who have identified more than 1,000 nearby stars taking a gander at Earth, have said that they reversed the system and ask from which systems “other observers could see Earth as a transiting planet”.
These stars are all within 326 light-years of Earth. “The closest star in our list is at a distance of only 8.5 pc – about 28 light-years – from our Sun,” the researchers said.
“In case we’re searching for intelligent life known to man that could discover us and might want to get in touch, we’ve just created the star guide of where we should look first,” she was quoted as saying by Space.com.
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