The so-called "Extremely Large Telescope" is being built on a mountaintop in the Andes at an elevation of about 3,000 meters. And it really is extremely large. The primary mirror will be 39 meters ...

Grinding, polishing, and figuring a telescope mirror is enormously rewarding. I did my first 8″ just over 50 years ago, and the idea that I could make an item accurate to millionths of an inch ...

To celebrate the Hubble telescope's 35th anniversary, NASA released some striking new images on Wednesday, including a bold rendition of Mars and a stunning photo of a moth-shaped nebula with a ...

Astronomers using the James Webb Space Telescope have found compelling evidence of a supermassive black hole at the heart of the Messier 83 galaxy. Webb's Mid-Infrared Instrument detected highly ...

A stunning new image from the James Webb Space Telescope is allowing astronomers to examine the complex and ... Venn-diagram-like structure — two rings of ejected material shaped by the ...

The Webb telescope is set to begin its fourth year of science operations this summer, NASA said. Researchers are able to apply for observation time with the telescope, with a record-breaking 2,377 ...

This Celestron 114LCM Newtonian telescope is just what you need, and it's $80 off at Amazon this Black Friday. This Celestron 114LCM Newtonian telescope is on sale now at Amazon for $359.99 .

For those new to telescopes, the Celestron 114LCM is a Newtonian reflecting telescope. Invented by the English scientist Sir Isaac Newton, this type of telescope uses a concave primary mirror and ...

The Kepler Space Telescope, named for astronomer Johannes Kepler, was NASA's first exoplanet hunting telescope. It launched on March 6, 2009, with the goal of observing more than 100,000 stars in ...

That is why the Hubble Space Telescope has a resolving power of around 0.04 arcsec, 10-times greater than the best ground-based telescopes. Science Ministry team visits Hawaii to take stock of ...

Which telescopes are best for beginners? See our picks. There’s a lot to consider when you’re trying to find the right telescope—especially if you’re new to stargazing.