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radio waves

SPACE: Lots of Alien Worlds Could Know We’re Here

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alien - Deposit Photos

At least 1,715 nearby star systems sat at a perfect angle to view Earth during the past 5,000 years, meaning aliens living in those systems, if they exist and have the right technology, could have watched our planet from afar as early human civilizations first emerged. Of those star systems, 313 exited the special viewing zone, known as the Earth transit zone (ETZ), sometime in the past few thousand years, leaving 1,402 star systems capable of providing a glimpse of our planet today, according to a new study, published Wednesday (June 23) in the journal Nature. And over the next … Read more

Scientists May have Detected Radio Emissions from An Alien World

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Radio Telescope - Deposit Photos

Scientists may have detected radio emissions from a planet orbiting a star beyond our sun for the first time. The astronomers behind the new research used a radio telescope in the Netherlands to study three different stars known to host exoplanets. The researchers compared what they saw to observations of Jupiter, diluted as if being seen from a star system dozens of light-years away. And one star system stood out: Tau Boötes, which contains at least one exoplanet. If the detection holds up, it could open the door to better understanding the magnetic fields of exoplanets and therefore the exoplanets … Read more