The pale blue data point: an Earth-based perspective on the search for alien life

The pale blue data point

Twenty thousand pings under the sea: in search of alien oceans

Swimming with stromatolites: the hunt for Martian fossils

The arc of the firmament: mapping exoplanets

To catch a falling star: meteorites and the clues to Earth's origin as a life-bearing planet

So long and thanks for all the fish: a dolphin-led guide to alien communication.