https://www.iflscience.com/iconic-wow-signal-may-finally-have-an-explanation-its-still-not-aliens-75619
The cause of the most mysterious signal in the hunt for extraterrestrial intelligence may finally have been solved, and it’s only taken 47 years.
tl;dr the signal appears to have been from a cold hydrogen cloud "resonating" off of radiation bursts; namely, those emitted by neutron stars. The stronger the burst through the cloud, the louder the signal on equipment. The WOW! signal appears to have been the result of a particularly powerful event, but by observing the same/similar (?) gas cloud(s), they've been able to spot signals with the same signature, albeit weaker due to being hit by less rare (and less powerful) phenomena.
Some clarification might be needed on whether it's a specific cloud that produces this signal, or if any cold hydrogen clouds are capable of it. I couldn't seem to find any in the article itself. Maybe there's something in the published research paper that provides further information.
I swear that every year for the past 20 years:
My brain has boy-who-cried-wolf'd itself into ignoring stories about these topics because I've been trained to believe that they're bullshit lol
At least one of those has come true. Frozen water has 100% been confirmed on Mars.
Now, the wishful part this year is liquid water being detected underground by seismometers (sp?)