- newly developed optical device may detect plant life on other planets
- Second test launch of virgin galactic SpaceShip 2 scheduled for February 20
- worlds first floating city to be built in Pacific Ocean
- dwarf planet Ceres may have had near surface water
- new trailer features first commercial space station
- new giant navy unmanned robot sub to roam seas for months at a time
- North Carolina teacher killed by mysterious unknown animal
- mysterious new communication mechanism discovered in the brain
- scientists warn insects could be wiped out within a century
- NASA to help private companies to land on moon by 2028
