throwaway241214

Thanks for doing this AMA. My(multi)Question, I have heard about great plastic/waste flouting around, have you seen it? If so how big, and I've also heard of the sea life using the larger plastic/waste as little floating reefs? and what impact has the waste had so far on the aquatic life that you have seen?

Being a Late 40's London living male, I have not voted in 20 years as i feel that there are no strong parties with any political direction worth mentioning, How would you convince me to vote?

What if any effects of microgravity changes have on the limbic system? any changes to testosterone levels? any marked stress changes that have been noticed?

Of all the Monty Python team who would you like to hang with if you could and why?

Do you study the past impact events, is it the composition, or the speed that would be the thing?