Weird 9-Ringed ‘Bullseye Galaxy’ Found By NASA’s Hubble

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
The subject of this NASA/ESA Hubble Space Telescope image is a supernova-hosting galaxy located about 600 million light-years ...
The Universe is full of dust, and a striking new image from the Hubble Space Telescope highlights just how important it is.