what's the nearest star?
Hubble image of Proxima Centauri, the closest star to the Sun. The Sun is the closest star to Earth, about 93 million miles away. The Sunâs nearest neighbor, Alpha Centauri, is actually a triple-star system âthree stars bound together by gravity. Alpha Centauri A and B are two bright, closely orbiting stars with a distant, dim companion, Proxima Centauri.