NASA's Unexplained Files

NASA's Unexplained Files· Season 2 · Episode 8

Revenge of the Fireflies

S02E08·May 27, 2015·Science

Something in space is attacking the brains of astronauts. What is it? Should NASA be worried about the sudden appearance of so-called space fireflies? Who is responsible for the bizarre glowing spiral in the skies over Norway?

Streaming on (US) HuluHBO Max Amazon ChannelPhiloDiscovery+ Amazon ChannelYouTube TVSee all

Keep going

SeasonSeason 2 ranked & reviewed

Every episode in airing order with ratings and dates.

StreamWhere to watch NASA's Unexplained Files

Every streaming service and region, checked around the clock.

MatchupShows like NASA's Unexplained Files

The closest matches, ranked by overlap and rating.