Andromeda, Hubble Space Telescope and dwarf galaxies

A previously unknown dwarf galaxy has been discovered on the outskirts of the Andromeda Galaxy, adding to the growing list of ...
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 ...
NASA’s Spitzer Space Telescope has captured this stunning image of Andromeda Galaxy which is also known as M31. This image, captured by NASA's retired Spitzer Space Telescope, shows only dust which ...