Instructions: Given a travel related situation, and given a specific question about the situation, summarize the question into a title
Input: Watching the recent return of Scott Kelly, Mikhail Korniyenko and Sergey Volkov from the International Space Station in a Soyuz capsule got me to wondering about visas and passports.

Do the astronauts and cosmonauts need to keep their passports with them?

Do they need special visas and would they receive entry and exit stamps for arriving from space, or would they get a single entry stamp in the days before launch and a single exit on returning home after landing?

Output:
Entry requirements for arrival from space