After a global tour, Puerto Rican superstar Bad Bunny returned home for two final concerts this weekend. He urged residents to continue fighting for improvements on the island.
To create the molecules we need to help us grow food or make fuel, we rely on chemical reactions — and lots of energy. One scientist may have a "brighter" approach, controlling chemistry with light.
A study in the journal Nature sets a new record for the lifespan of lab-grown cells called organoids. These clusters of human cells in petri dishes are used as models of the human brain.