"The best candidate for an extraterrestrial message in 42 years is probably manmade. But what if it’s not? "
https://astronomy.com/news/2020/12/heres-what-we-know-about-the-signal-from-proxima-centauri
https://sites.psu.edu/astrowright/2020/12/20/blc1-a-candidate-signal-around-proxima/