On November 16, 1974, humans sent their first message to the stars in an attempt to contact extraterrestrials. They did this using what was then the largest radio telescope in the world, located at ...

Arecibo’s dramatic collapse was not a sudden accident but a slow-motion failure of materials, design limits, and difficult choices. After hurricane damage and decades of reduced funding, one cable ...

Astronomers compare losing the observatory in Puerto Rico to losing a big brother. It was once the world's largest single-dish radio telescope. Updated on Dec. 4 at 11:30 a.m. ET The Arecibo ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 'signals of interest' with the world's largest radio telescope. When you purchase through links on ...

Following nearly five decades of directing the world’s largest single-dish telescope, Cornell lost its multi-million dollar bid to continue operating Arecibo Observatory last month. As of Oct. 1, the ...

Requested by the Director of the National Science Foundation "Analysis of Cause(s) of Failure and Collapse of the 305-Meter Telescope at the Arecibo Observatory in Puerto Rico" The committee will ...

For 21 years, between 1999 and 2020, millions of people worldwide loaned UC Berkeley scientists their computers to search for signs of advanced civilizations in our galaxy. The project—called ...

Arecibo didn’t fall because of weather. A critical cable failed, and the forces had nowhere else to go. The structure ...