December 14, 2017

Astronomy Video of the Week: An Amazing Piece of Metal

The tarnished mirror used in Herschel’s 40-foot reflector on display at the London Science Museum.

Image credit: geni/Wikimedia Commons

Your backyard Dobsonian has a mirror that far outperforms the best telescopes of yore.

This week, we thought we’d break the “all-Pluto all the time” mantra for July to bring you a classic from our archives. [Read more...]