Astronomers have detected the silhouette of a planet just twice the diameter of earth using ground-based telescopes. It is the smallest planet detected with the technique and raises hopes that it ...

A globe-spanning array of radio telescopes is on track to begin operations in 2017, simultaneously observing light wrapping around and silhouetting a supermassive black hole at the heart of the ...

The pioneering EHT links up multiple telescopes to create a virtual instrument the size of Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...