Extraordinary footage showed two NASA astronauts as they completed X-ray telescope repairs outside the International Space Station on Thursday.NASA livestreamed the spacewalk, which began at 8 am ET ...

Just to make it that little bit more challenging, there's also three different main types of telescopes to look out for. You have the choice of refractor, reflector and catadioptric telescopes ...

Giant ground-based reflector telescopes do much of astronomy's heavy lifting, although the U.S.'s largest in Hawaii is not ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for stargazing and astronomy. Ask an astronomer what the best monocular is for ...

NASA's Roman Space Telescope, slated for a 2027 launch, will provide insights into dark energy and exoplanets. It will undergo rigorous testing to ensure durability in space conditions.

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

The Subaru Telescope in Hawai‘i is adding a new instrument to its arsenal, one that will observe the cosmos through a compound eye. The compound eye will allow Subaru to observe about 2,400 ...

A few years ago, a very kind friend gave me a telescope for my birthday. Though I never made much use of it while living in a basement flat in London, UK, I’m now up in Yorkshire with darker ...

Technicians have successfully integrated NASA's Nancy Grace Roman Space Telescope's payload—the telescope, instrument carrier ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...