PhysicsThe surprising benefits of contemplating the death of the universeCosmologist Katie Mack spends her days pondering the end of everything. Whether the cosmos dies a slow heat death or winks out of existence tomorrow, she finds it helps put everyday troubles in perspectiveFeatures
SpaceWe know the best spots to look for alien life – can we get to them? Extraterrestrial oceans are an obvious place to search for alien life, but getting there and having a look won't be easy, says NASA's Kevin Hand in his book Alien OceansCulture