Arecibo

When asteroid 2019 OK suddenly appeared barreling toward Earth on July 25, 2019, Luisa Fernanda Zambrano-Marin and the team at the Arecibo Observatory in Puerto Rico jumped into action. After getting an alert, the radar scientists zoned in…

Data collected by the Arecibo Radio Telescope before it collapsed late last year will help astronomers better understand how our local neighbourhood of galaxies formed. Arecibo was the world's largest single-dish radio telescope until it…