Given a travel related situation, and given a specific question about the situation, summarize the question into a title

Q: 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?


A: Entry requirements for arrival from space
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Q: I have a ticket (see below for the actual ticket) on a weekend, and intend to use it to travel from St Pancras to Brighton and back. It says that it is not valid on the London Underground.

Can I use it on the Overground to travel from an Overground station to Euston, transfer to St Pancras and continue my day journey, then return to St Pancras in the evening and use the return ticket to travel from Euston to another Overground station?




A: Is a Super Off Peak ThamesLink fare accepted on the London Overground?
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Q: I am travelling to various destinations in Southeast Asia. What is the best way to go about getting cell + data service? Is there a telecom that offers cheap roaming throughout a broad region, or will I need to get a SIM card in each country I travel to (most of my destinations will be a few days at a time, the most being a week, so this would be a bit inefficient)?


A:
Cellphone service in Southeast Asia?
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