To learn more about what's happening on the International Space Station at any given time, check out NASA's frequently-updated ISS blog or their page about the research and development work happening on ISS.
Depends on your body type and metabolism and your routine. But usually it takes around 3 to 4 weeks for visible results. For me it took me a couple of months to actually see any progress visually.
3 years. 1  I don't think you understood the article Damian. The author was clearly stating that if you eat a 'big' meal then you should wait 2-3 hours before exercising but a 'snack' or 'small meal' can and should be eaten an hour before exercising.