From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for ...

After decades of planning, the James Webb Space Telescope launched on Christmas Day 2021. Here are some of the most important ...

In striving to make images he saw through his telescope ... Despite myriad embellishments, however, most optical telescopes in use in the 21st century derive from the two types developed in ...

A stunning composite image of the Crab Nebula combines X-rays from Chandra (blue and white), optical data from Hubble (purple), and infrared data from Spitzer (pink). This image from NASA's Spitzer ...

NASA’s James Webb Space Telescope has peered into the chaos of the Cartwheel Galaxy, revealing new details about star formation and the galaxy’s central black hole. A festive portrait of our Milky Way ...

The center of our Milky Way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas.

Want to see Mars at its brightest in January? The best telescopes for seeing planets give you the clearest views of our celestial neighbors. The new year is a great time to test out your ...

[Bill Hammack] elaborates on one such piece of engineering: The Alignment Optical Telescope. The telescope was used to find the position of the Lunar Module in space so that its guidance computer ...

The primary mirror, M1, is the largest mirror ever made for an optical telescope ... light at very small wavelengths which enables image clarity at a tiny scale, so more and more transistors ...

Its “first light” images are due to be published on July ... predictions assumed,” said Lee Feinberg, Webb optical telescope element manager at NASA Goddard. “We will use this flight ...