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

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

This was the first working reflecting telescope. Other designers proved unable to grind mirrors with a regular curvature, so the reflector remained largely a curiosity until the mid-18th century ...

This story appears in the July 2009 issue of National Geographic magazine. When you start stargazing with a telescope, two experiences typically ensue. First, you are astonished by the view ...

Two key inventions enabled astronomers to overcome the problem of chromatic aberration: the invention of the reflecting telescope described by James Gregory and built in a different form by Isaac ...

We've rounded up the best telescopes for all budgets and experience levels. The night sky can be breathtaking, but to really explore its wonders, you'll want a telescope. Now's the perfect time to ...

The Stephens observatory, located on the roof of Carnegie, houses a 12-inch Newtonian reflecting telescope, built by Roscoe G. Stephens of Kennebunk, Maine. Stephens gifted the telescope to the ...

Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. Memoirs of the American Academy of Arts ... Memoirs of the American Academy of Arts and Sciences Vol ...

After the planetarium show, view the real night sky through telescopes at the UNG North Georgia Astronomical Observatory (weather permitting). The new observatory facility is complete and open to the ...