The world-renowned radio telescope at the Arecibo Observatory in northern Puerto Rico, now on the brink of collapse, is set to be withdrawn from service, the National Science Foundation (NSF) ...

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 ...

In her last days in office, Gov. Wanda Vázquez Garced signed an executive order committing Puerto Rico to reconstruct the Arecibo radio observatory — a telescope Cornell managed for 42 years. The ...

While the scientific community grapples with the loss of the Arecibo radio telescope, astronomers who recently revived a long-dormant radio telescope array in Argentina hope it can help modestly ...

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Two huge radio telescopes have given scientists a rare look beneath the surface of the moon. Signals beamed from the Arecibo Observatory in Puerto Rico — the world's largest radio dish, with a ...