The first time I read about Oumuamua, I thought of that book. Also the incident in 1988 where 2 "comets" appeared out of nowhere, and one went through a CME and came out intact on the other side, unscathed. Apparently it was considered "a shot across the bow" to intel agencies…
ice be rayciss!!
This is beautiful!
Hmm, I didn't remember that, but then again it's been almost 30 years since I read it.