Did China's FAST telescope detect an alien signal? Probably not, but let's take a look. 00:00 Did FAST detect an alien signal? 00:57 Kepler-438b system 02:08 Comparison to the Proxima Centauri signal 03:28 How the FAST telescope works 04:51 Radio Frequency Interference (RFI) 05:36 SETI ...