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 ...
A Milky Way collision with a supermassive black hole might be closer than we thought. Hidden deep in the Large Magellanic ...
The Tarantula Nebula doesn’t sound like the most romantic place in the Universe. But a composite image containing some of the ...