Wikipedia article of the day for March 2, 2026
The Wikipedia article of the day for March 2, 2026 is Galaxy . A galaxy is a massive system bound together by gravity that contains stars and surrounding matter, stellar remnants, interstellar matter, and dark matter, all orbiting a common center of gravity. Typical galaxies range from as few as 10 million stars up to supergiants with 100 trillion stars, but most of the mass is dark matter. The Solar System is in the Milky Way galaxy, whose nearest large neighbor, the Andromeda Galaxy, is about 750,000 parsecs (2.4 million light years) away from Earth; the two galaxies dominate the Local Group. There are probably more than 200 billion galaxies in the observable universe. Most are 1,000 to 100,000 parsecs (about 300 to 300,000 ly) in diameter and are often separated from their neighbors by millions of parsecs. There is evidence that supermassive black holes exist at the center of many, if not all, galaxies. The Milky Way, a spiral galaxy with a diamet...