![Learn to Skywatch on X: "Alpha Centauri, the closest solar system to our Sun is about 4.3 LY away. How far is that? 40,680,272,120,000 km! https://t.co/z3sMzFfM6t" / X Learn to Skywatch on X: "Alpha Centauri, the closest solar system to our Sun is about 4.3 LY away. How far is that? 40,680,272,120,000 km! https://t.co/z3sMzFfM6t" / X](https://pbs.twimg.com/media/Cszx7xNWcAECbWZ.jpg)
Learn to Skywatch on X: "Alpha Centauri, the closest solar system to our Sun is about 4.3 LY away. How far is that? 40,680,272,120,000 km! https://t.co/z3sMzFfM6t" / X
What's the closest Earth has ever been to another star (besides the Sun) and will Earth ever be closer to another star than we are to Proxima Centauri now? - Quora
![Is It a Planet? Astronomers Spy Promising Potential World around Alpha Centauri - Scientific American Is It a Planet? Astronomers Spy Promising Potential World around Alpha Centauri - Scientific American](https://static.scientificamerican.com/sciam/cache/file/B190D297-F58B-4743-876DB52536DAA1A3_source.jpg)