Black Parrot (Slashdot reader #19,622) pointed out a historic anniversary this week:

On October 6, 1923, Edwin Hubble got a photo of Andromeda that showed that it contained a variable star, and therefore was an actual galaxy, ending the Great Debate over whether the universe consisted of anything beyond our own galaxy. Unless you’re more than 100 years old you grew up with a completely different understanding of the universe than anyone who lived before. Even Einstein did not know about it when he proposed the theory of general relativity. It was later in the decade before Hubble discovered that the universe is expanding.

A century later, the European Space Agency was announcing…

A very rare, strange burst of extraordinarily bright light in the universe just got even stranger â” thanks to the eagle-eye of the NASA/ESA Hubble Space Telescope. The phenomenon, called a Luminous Fast Blue Optical Transient (LFBOT), flashed onto the scene where it wasnâ(TM)t expected to be found, far away from any host galaxy. Only Hubble could pinpoint its location. The Hubble results suggest astronomers know even less about these objects than previously thought by ruling out some possible theories.

Read more of this story at Slashdot.