The National Science Foundation (NSF) will decommission Arecibo Observatory's massive radio dish after damage has made the facility too dangerous to repair, the agency announced today (Nov. 19).

But Arecibo's true legacy lies in the many scientific discoveries it made possible. It explored pulsars, expanded our knowledge of Mercury, spotted exoplanets and found fast radio bursts.

One of the world's largest and most iconic radio telescopes collapsed on Tuesday. In its 57 years, the Arecibo Observatory in Puerto Rico revolutionized radio astronomy. It beamed messages to ...

Compare images of the iconic Arecibo telescope in Puerto Rico before and after its platform fell 450 feet and crashed into the disk below.

Scientists, students demand action to keep Arecibo radio telescope operating "The observatory is very important for science globally." By Cristina Corujo. November 26, 2020, 1:10 PM.

Arecibo broadcast its most famous message in 1974, a pictorial radio signal aimed at M13, approximately 21,000 light-years away. According to SETI, the broadcast is roughly the same as a 20 ...

"Arecibo is also a radar, capable of transmitting [radio waves.] Most radio telescope, such as the larger one in China [FAST], are only able to listen," Mendez tells Inverse.

Edgard Rivera-Valentín first visited the Arecibo Observatory as a little kid. “I definitely remember this feeling of just being awestruck,” Rivera-Valentín says. “Looking at this gigantic ...

In 1990, Arecibo was being repaired, and so it was stuck staring at one spot on the sky. During its observations, Earth’s rotation swept PSR B1257+12 across the telescope’s field of view.