Some astronauts gather at the NASA building.

The Russian says:

“We are sending a rocket to Mercury, to take samples of the planet’s atmosphere”.

The American says:

“We are sending a sound to the Moon to analyze the interior of that satellite”.

And a Polish says:

“We are sending a rocket to the Sun... “.

And the other two says:

“But the rocket, as it gets closer to the Sun, it’ll melt”.

and the Polish replies:

“Well, I don’t think they are gonna be so stupid as to send the rocket during the day!”.