Andromeda is a galaxy located about 2.5 million light-years away from Earth. It is the nearest major galaxy to our own Milky Way. It is a spiral galaxy, much like the Milky Way, and is estimated to contain one trillion stars. Andromeda is the largest galaxy in the Local Group, which includes the Milky Way and over 30 other galaxies. It is estimated to be twice the size of the Milky Way. Andromeda is visible to the naked eye in the night sky, and is best viewed in the Northern Hemisphere during the months of November and December. Recent news articles about Andromeda include its discovery of a new supermassive black hole, the discovery of its most distant star cluster, and the discovery of a new type of star. Videos about Andromeda include an overview of its structure, its history of exploration, and videos of images taken by the Hubble Space Telescope.