A team of astronomers has discovered the most-luminous supernova ever observed, called It is two times more luminous than any supernova previously discovered. In fact, at peak was almost 50 times more luminous than the entire Milky Way galaxy.
Hubble Captures the Beating Heart of the Crab Nebula
The Universe Is Expanding Faster Than Scientists Thought. Illustration showing the three steps astronomers used to measure the universe's expansion rate to an unprecedented accuracy, reducing the total uncertainty to percent.