Staff at the European Southern Observatory have a system to clean the La Silla Observatory's delicate mirrors without breaking them. When you purchase through links on our site, we may earn an ...

Through the centuries, the telescope has gone through an incredible evolution to become the tool it is today. In the modern era, these miraculous inventions can be purchased from a variety of stores, ...

The James Webb Space Telescope is the most powerful space telescope ever built, and its mirrors must be kept squeaky clean. Any debris, even tiny flecks of dust, could impact its science. Ergo, “snow ...