Where To Stream The Sky at Night Season 2026 Episode 4

Could alien life exist closer than we think - perhaps right next door? A paper published in 2025 suggested that strange markings discovered on Mars could provide some of the strongest evidence yet that life once existed on the Red Planet. The Sky at Night team travels across Great Britain to investigate this and other evidence that suggests the search for life beyond Earth may lie within our own solar system. Off the east coast of Scotland, Chris Lintott meets Dr Claire Cousins, who explains...