Scientists have made a discovery in deep space that challenges current understanding, with some reports indicating the finding of an "impossible" object or galaxy. The discovery was made possible by images from the Hubble Space Telescope, which has spotted unusual light or signals from a galaxy that was thought to be invisible. The nature of the finding is not entirely clear, with descriptions ranging from a cosmic "Rosetta Stone" to a fearsome wind that destroys galaxies, and an interstellar object speeding through the solar system.