[SunkenCiv]

Nope, not a plane. Probably a natural event.

The rest of the wowsignal keyword, sorted:

• SETI breakthrough! NASA scientist discovers three repeating ET signals coming from nearby stars! [19:57] [06/24/2025]
• Amateur astronomer Alberto Caballero finds possible source of Wow! signal [11/25/2020]
• What Was the WOW Signal? [09/21/2015]
• Is this ET? Mystery of strange radio bursts from space [04/01/2015]

[scrabblehack]

https://freerepublic.com/focus/chat/3909456/posts

“Equus” is Latin for “horse.” Is that what was so “wow?”