It’s no different from the whole search for Bigfoot, Sasquatch, Yeti, that whole thing.
Well, actually it is.
In the case of Bigfoot, Sasquatch and Yeti; you don't have multiple, simultaneous, highly trained observers with both visuals and instrumentation reporting something that shouldn't exist.
It's not physical evidence but it isn't exactly hearsay either.
It’s no different from the whole search for Bigfoot, Sasquatch, Yeti, that whole thing.
Well, actually it is.
In the case of Bigfoot, Sasquatch and Yeti; you don't have multiple, simultaneous, highly trained observers with both visuals and instrumentation reporting something that shouldn't exist.
It's not physical evidence but it isn't exactly hearsay either.