FUN FACT: There's an asteroid named 2309 Mr. Spock, and it's not what you think. It's named after a cat, not the logical Vulcan from Star Trek. The cat's owner, an astronomer, couldn't resist. Nowadays, naming guidelines frown upon pet-inspired names.
One valve. Seconds to react. No pressure suits. After Soyuz 11’s service module separated, a pressure-equalization valve opened and the capsule rapidly lost cabin pressure. The crew tried to stop it, but couldn’t. What detail of this spaceflight tragedy surprised you most? #Soyuz11 #SpaceHistory
