LifeSend an ear: Listening for sounds of life in the solar systemThe seismic echoes of Jupiter’s icy moons could teach us more about their hidden oceans than any picture – and help us gauge their potential for lifeFeatures
SpaceLIGO could detect gravitational waves’ permanent space-time warp When gravitational waves permanently distort space-time, it causes a “memory” signal – which may help LIGO find some of the universe’s most exotic objects 51