In the June 24 SN: Unlikely worlds around dim red stars, bacteria to the rescue, flamingos’ balancing act, Jupiter up close, hominid origins revisited, spacetime shakes again, ladybug wing origami and more.
OUT OF BREATH Caesar’s last moments have inspired much scientific thinking, as well as a new book.
VINCENZO CAMUCCINI/WIKIMEDIA COMMONS
TOXIC FOAM The foam used to put out aviation fires often contains toxic perfluorooctanoic acid and related molecules. When these chemicals get into the water supply, they linger for years without breaking down. A new material may offer a better way to filter them out.