Getting closer to the end of a degree course, it’s natural for people to start talking about careers.

‘What are you doing after this?’

‘I don’t know yet. Maybe study some more.’

‘I’m going back to my old company.’

‘I might travel a bit.’

‘I’ve got two interviews next week.’

Here’s an option for anyone who doesn’t know what they want to do for the next two years: take a pretend trip to Mars. You can apply to the European Space Agency — see the call for candidates (pdf). Now, there’s something to tell the grandkids!