Enceladus’s Alien Ocean, Ancient Fungi and the Flavor of Influenza Saturn’s moon Enceladus shows signs of life-supporting chemistry, fungi may have shaped Earth before plants, and repeat COVID infections raise long-term health risks for kids. By Rachel Feltman, Fonda Mwangi, Jeffery DelViscio & Alex Sugiura An artist’s impression of surface of Enceladus. Rachel Feltman: Happy…