- Messier 53 (Wikipedia)
Messier 53 (also known as M53 or NGC 5024) is a globular cluster in the Coma Berenices constellation. It was discovered by Johann Elert Bode in 1775. M53 is one of the more outlying globular clusters, being about 60,000 light-years (18.4 kpc) light-years away from the Galactic Center, and almost the same distance (about 58,000 light-years (17.9 kpc)) from the Solar System. The cluster has a core radius (rc) of 2.18 pc, a half-light radius (rh) of 5.84 pc, and a tidal radius (rtr) of 239.9 pc.
- Spaceballs (allthetropes.org)
Spaceballs is a farcical comedy film directed by Mel Brooks which does for Science Fiction – especially Star Wars – what Blazing Saddles did for The Western.