Episode 458: Proxima Centauri's Planets?

Skywatch - MP3 ›

01:00 | Jul 4th, 2013

At a distance of 4.2 light-years from Earth, Proxima Centauri is just 0.2 light-years from the more-distant binary star Alpha Centauri A+B. These three stars are considered part of the triple-star sys...Show More