Brezhnev orders a new space mission

 Brezhnev assembles the Soviet Union's greatest astrophysicists and tells them, "The Americans have landed on the moon years ago, and we must surpass them. The Party has decided that our cosmonauts will land on the sun!"

"But Comrade General Secretary," one of the scientists says, "our men will burn up!"

"We're not fools here in the Politburo. They can land at night."

Variants also make this joke about Gorbachev, North Korea, and dumb blondes.