ARECIBO, Puerto Rico (AP) — A huge, already damaged radio telescope in Puerto Rico that has played a key role in astronomical discoveries for more than half a century completely collapsed on...
SAN JUAN, Puerto Rico (AP) — The giant, aging cables that support one of the world's largest single-dish radio telescopes are slowly unraveling in this U.S. territory, pushing an observatory...
University of Hong Kong scientists claim to have the first evidence of someone being reinfected with the virus that causes COVID-19.
Genetic tests revealed that a 33-year-old man returning...
A doctor checking comatose COVID-19 patients for signs of a stroke instead stumbled onto a new clue about how the virus may harm the lungs -- thanks to a test that used tiny air bubbles and a...