Astronomical

Russian Cosmonauts recently said:

"The hardest thing is coming back to Earth. The problem is not so much the mundanity of earthly existence -- bills to pay, food to buy, chores to complete. But the muscle fabric degrades very much. It's hard to walk. You have to learn how to walk again, like a small child."

He then added, "And the diapers. I miss wearing the diapers."