Manned missions to Mars have been in the works for decades, but we still haven't worked out all the details for getting humans to safely
set foot on the red planet. Technology has clearly improved since the 1970s, so we're likely closer to solving the challenges of landing people on Mars than ever before. Some astronauts might accept a one-way ticket, but it might be nice for those adventurers to have a committed, long-term supply line so that their excursion lasts as long as possible. Here are just a few links that might be interesting for future astronauts.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post