Building the Hospital of the Future:  A Kids-Only Minecraft Hackathon will be held on October 1, 9AM-2PM, at the Museum of Science for ages 5 to 20 to use Minecraft to collaborate on design of a hospital of the future.  Children under 18 must be accompanied by parent/guardian.  The event is sponsored by HUBweek, the Museum of Science, Boston Children’s Hospital, Hacking Pediatrics, and Microsoft.  The cost is $20 for each child or adult and includes all-day admission to the Museum of Science.  Register now for one of four sessions during the day.