Animals don't need watches: A new study from Northwestern University has found some of the clearest evidence yet that animals can judge time. Researchers studying animals’ brains found a previously unknown set of neurons that turn on like a clock when an animal is waiting, for example, for food. They’re hoping to use their findings in the effort to learn more about Alzheimer’s disease in humans.
Short Day on Saturn: Using new data from NASA’s Cassini spacecraft, researchers believe they have solved a longstanding mystery of solar system science: the length of a day on Saturn. The answer, it turned out, was hidden in the rings. It’s 10 hours, 33 minutes and 38 seconds. The figure has eluded planetary scientists for decades, because the gas giant has no solid surface with landmarks to track as it rotates, and it has an unusual magnetic field that hides the planet’s rotation rate.