The legacy of Arecibo's nearly 60 years of astronomy research is strong, even after its loss in a dramatic 2020 collapse. Arecibo Observatory, located in Puerto Rico, was the world's second ...

The Arecibo Observatory suffered a massive collapse. A control room camera and drone captured the devastation. Credit: Space.com | footage courtesy: Arecibo Observatory / National Science Foundation | ...

If an extraterrestrial civilization existed with technology comparable to ours, would they be able to detect Earth?

The National Science Foundation (NSF) has deemed the radio telescope housed within the Arecibo Observatory no longer fit for ...

They all happened at the Arecibo Observatory in Puerto Rico. With a spherical reflector dish that was 305 meters (roughly 1000 feet) in diameter, Arecibo held the title of world's largest radio ...

A research team led by Dr. Sofia Sheikh of the SETI Institute, in collaboration with the Characterizing Atmospheric ...

If extraterrestrial civilizations exist with technology similar to ours, could they detect Earth? A team of SETI researchers ...

Earth's pollution and technology might reveal our presence to aliens. From radio signals to city lights, scientists study ...

With HWO, SETI could detect these emissions from as far as 5.7 light-years away, just beyond our closest stellar neighbor, Proxima Centauri. Finally, as you get closer and closer to Earth, you would ...

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The Arecibo Observatory has a rich history. Scientists used the site's massive telescope to collect data about Earth's atmosphere, the solar system's planets, comets and more since its debut in ...