Because they didn't Lajka.
Nyet long. He's always Russian.
Shneakoff ( I apologise, this is my first ever post so I'm using that as my excuse)
A person who stays up all night wondering whether or not there is a dog.
Pants.
NASA.
Spudnik
Because he reached terminal velocity.
Jesus died on the cross
Coz 'e-mmental!
Laika boss.