Recently, NASA and ESA released the most detailed image yet of Andromeda, our closest galactic neighbor at 2.5 million light years away. Andromeda—which is expected to collide and merge with our own Milky Way galaxy in about four billion years—is estimated to contain a trillion stars. By comparison, our galaxy contains about 300 billion stars. … Continue reading Take a Tour of Hubble’s Mind Blowing High Definition Snapshot of the Andromeda Galaxy