Astronomers using NSF’s 1,000-foot (305-m) Arecibo Observatory in Puerto Rico have captured images of a massive asteroid – designated 2015 TB145 – as it made its closest approach to our planet yesterday. This image of 2015 TB145 was generated using radar data collected by the Arecibo Observatory. Image credit: NAIC-Arecibo / NSF. 2015 TB145, informally known as the ‘Great Pumpkin’ or the Halloween asteroid, was discovered on October...
