An algal protein gave researchers a precise way to activate selected nerve cells. The experiments that followed changed neuroscience—and opened a demanding path toward restoring vision.
A summer field campaign followed smoke from the fireground into the atmosphere. Its measurements could help explain when a blaze generates dangerous weather—and what its particles do months later.
A strip of foil on the Moon began a story that continues in carefully sealed containers on Earth. The hardest part of collecting the solar wind may be keeping it useful.
