Evidence of alien life, a clue about the rise of bowel cancer, and a new colour?

Madeleine Finlay and Ian Sample discuss three intriguing science stories from the week. From a hint at alien life on a distant planet to a clue in the search for answers over why colon cancer rates are rising in the under 50s, and news from scientists who claim to have found a colour no one has seen before. Help support our independent journalism at theguardian.com/sciencepod

Twice a week, the Guardian brings you the latest science and environment news

• No. of episodes: 300
• Latest episode: 2025-05-15
• Science

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