Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

If shorter days and shifts in the weather zap your energy and make you feel blue, you’ve got classic symptoms of seasonal affective disorder (SAD). SAD is a form of depression triggered by changes in ...

Apr. 7, 2026 A gene called KLF5 may be a key force behind the spread of pancreatic cancer—but not in the way scientists expected. Rather than mutating DNA, it rewires how genes are turned on and off, ...