Alpha Centauri is about 4.4 light-years (roughly 25 trillion miles, or 40 trillion kilometers) from Earth and is home to three separate stars. The closest star, Proxima Centauri, also hosts an ...

Unveiling the Cosmic Highway: Alpha Centauri’s Particles Making Their Way to Our Solar System The concept of a “ cosmic highway ” is not new, but this study marks a significant step in ...

Spacecraft flying by the Alpha Centauri star system could see whether the planet circling Proxima Centauri has signs of extraterrestrial life. (Image credit: Courtesy of Space Initiatives Inc.) ...