Andromeda, Hubble Space Telescope and dwarf galaxies

Am astrophotographer has now unveiled the most breathtaking photo of the Andromeda galaxy we've ever seen, and he took it ...
If you missed the grand planetary alignment at the end of February, most of the planets aren't going anywhere. Mercury, Venus ...
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Fast-moving stars in the Milky Way indicate there could be a supermassive black hole in the neighboring Large Magellanic ...