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.
How soon can you see results? According to Billy Blanks Enterprises research, some people report feeling a change in their body the very first time they do Tae-Bo and they begin to see results in as little as three Tae-Bo sessions. Others report change over several weeks. Everybody is a little different and individual results vary. How often should I do Tae-Bo?