"apparent shift in its frequency is consistent with the Doppler effect caused by the movement of Proxima b, a planet of Proxima Centauri." https://en.wikipedia.org/wiki/BLC-1
"apparent shift in its frequency is consistent with the Doppler effect caused by the movement of Proxima b, a planet of Proxima Centauri." https://en.wikipedia.org/wiki/BLC-1