LifeGiving astronauts tardigrade toughness will be harder than we hoped The protein that protects tardigrade DNA from radiation and mutagenic chemicals was thought to be harmless, but can in fact have major downsides 51¶¯Âþ
SpaceThe century-long hunt for the gigantic meteorite that vanished A soldier returned from the Sahara desert in 1916 with a wild story about a meteorite that dwarfed all others. Over 100 years of hunting yielded nothing – but now twin brothers think they have solved the puzzle Features