A brown dwarf is an astronomical object that is larger than a planet but not massive enough to sustain hydrogen fusion like a star, typically having a mass between 13 and 80 times that of Jupiter. They are often referred to as “failed stars” because they can fuse deuterium but cannot maintain stable hydrogen fusion.

Very interesting read on wikipedia: https://en.wikipedia.org/wiki/Brown_dwarf

Epsteins blue ball

San Francisco: “Am I a joke to you”?