Mach 20

Referenced in 1 episode

Definition

A speed measurement indicating 20 times the speed of sound, which was reported by Brazilian military to be the speed of unidentified craft in an incident during the 1986 mass UFO sighting.

Related episodes

BREAKING: Brazil’s Defense Minister Says They’ve Had Alien Contact [Exclusive Interview]

American Alchemy (Podcast)Jun 11, 2026

Aldo Rebelo, Brazil's former Minister of Defense, reveals significant historical encounters with non-human intelligence in Brazil, dating back to the 1970s. He discusses the Colares incidents where UFOs reportedly harmed civilians and the infamous 1996 Varginha crash involving non-human beings. Rebelo argues for the declassification of military information related to these events, emphasizing their importance in world history.

FS 8