What are some simple and funny English jokes about space?

The Canadian space agency began to send astronauts into space for the first time, but they soon got a report that astronauts could not write with ballpoint pens in weightlessness. So it took them 10 years,1200 million dollars, and scientists finally invented the ballpoint pen. This pen is suitable for weightlessness, handstand, water, any flat object, MINUS 300 degrees Celsius.

Russians have been using pencils in space. But imagine what would happen if pencil lead broke off? :-D)