WHAT IS THAT THING?
Here's more on the story from the Telegraph:
Experts were baffled after video footage emerged of a glowing “alien-like creature” swimming in Bristol harbour. Stunned eyewitnesses filmed a mystery luminescent, tentacled being, which was flashing a variety of colours, floating close to the top of the water Videos of the strange marine object in the city’s historic docks were posted on Youtube and Twitter with many claiming to have seen an alien. Marine biologists admit they are baffled, but claim the footage could be a marine salp which had drifted off course by the weather.