Hamiltonian Hugh McCarroll named semi-finalist in Nasa Space Feb 21, 2017 18:31:39 GMT 12 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Dave Homewood on Feb 21, 2017 18:31:39 GMT 12 Hamiltonian Hugh McCarroll named semi-finalist in Nasa Space Poop Challengewww.stuff.co.nz/science/89652705/hamiltonian-hugh-mccarroll-named-semifinalist-in-nasa-space-poop-challenge