Why Good News Makes Good Sense

NASA’s Perseverance Rover has found some unusual mudstones in an old riverbed on Mars, covered in patterns nicknamed “leopard spots” and “poppy seeds”.
Scientists think these markings could have formed from chemical reactions linked to ancient microbes, making them the most promising signs of past life on the Red Planet yet.

British scientists are modernising the stethoscope, using AI to potentially detect major heart conditions, sooner.