Explorer's UpdateBuilding Better Bones - 1/29/2003 NASA is going to install a materials processing unit on the International Space Station in early 2003 called SpaceDRUMS(tm). This device will be used by scientists who are trying to create artificial bone. A Mission for Science - 1/21/2003 Sowing Seeds in a Magnetic Field - 1/14/2003 Thor Heyerdahl - An Inspiration for All Explorers - 1/7/2003