The Andromeda Galaxy (Messier 31) is the nearest major spiral galaxy to the Milky Way, located about 2.5 million light-years away. Spanning up to 220,000 light-years in diameter, it is larger than our own galaxy and contains an estimated 1 trillion stars.
The Andromeda Galaxy (Messier 31) is the nearest major spiral galaxy to the Milky Way, located about 2.5 million light-years away. Spanning up to 220,000 light-years in diameter, it is larger than our own galaxy and contains an estimated 1 trillion stars.