Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) and by analyzing archival Arecibo Observatory data, ...

I n 1963, the Arecibo Observatory became operational on the island of Puerto Rico. Measuring 305 meters (~1000 ft) in ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

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

The Arecibo Observatory has a rich history ... Plus, they can visit the observation deck to see the telescope and its radio mirror. There is also a gift shop on-site. Past travelers said the ...

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

SETI scientists try to determine whether aliens at a similar technology level to humans could detect Earth and from how far ...

Virkki used radar to track near Earth objects at the Arecibo Observatory in Puerto Rico until the 900-ton equipment platform ...

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

Virkki used radar to track near Earth objects at the Arecibo Observatory in Puerto Rico until the 900-ton equipment platform above the main radio telescope there dramatically collapsed in 2020 ...