Happy 20th Birthday, Hubble Space Telescope

The Hubble Space Telescope was launched twenty years ago today on board the shuttle Discovery.

Like Daria, the HST had bad eyesight due to an error in grinding the main mirror. So, in December of 1993 NASA sent the shuttle Endeavour to install a set of corrective lenses, COSTAR and WFPC2.

What we have seen since has simply been wonderous.

And a nod to Bad Astronomer, Phil Plait, and "Ten Things You Didn't Know About Hubble".