Scientists find two tiny new snails with shells that close like doors - Science Daily

October 14NewsDuration 2:27closed captionA P. E. I. scientist has been taking aim at weeds in potato fields with some unusual substances. He has been blasting them, literally, with corn grits, baking soda and walnut shells. The project fired a few blanks, but researchers hope what they have learned will help them come up with new ways to fight weeds in the future. CBC's Nancy Russell reports.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.