Mostly used to help older people read ... Building a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around. To reduce distortions such ...

A 40-meter-diameter radio telescope is put into use on Friday in Shigatse, Xizang autonomous region. Built by the Shanghai Astronomical Observatory under the Chinese Academy of Sciences ...

To create the first photo of a black hole, scientists analysed signals from some 55 million light-years away that crossed intergalactic space to reach an array of telescopes spanning the globe ...