SpaceWhy the lack of water on Mars is so mysterious An accounting of all the water that should have been and gone on Mars’s surface has come up with a discrepancy that shows just how little we understand the Red Planet’s hydrological history News
TechnologySlices of wood can filter bacteria and microplastics from water Water filters made from untreated wood can remove more than 99 per cent of particles, taking out many harmful bacteria and microplastics News