Medicine & TechnologyRead on to know if everyone should worry after the dead Arecibo Telescope found more than 70 harmful asteroids before its collapse.
Arecibo Observatory telescope was one of the largest globally and has been a tool for many astronomical discoveries, and is famous for its dramatic scale and setting.
Astronomers in eastern Australia using the CSIRO's 64-m Parkes radio telescope have for the first time caught a "fast radio burst" live. A fast radio burst is a short, sharp flash of radio waves from an unknown source.