For weeks, the questions from Michelle Kearns’ first-grade art students at Cochranton Elementary have been the same: “Do we get to go on our trip today? Do we get to go on our trip ...
Penn State University researchers have built a dual-gated graphene sensor that operates reliably in liquid environments, achieving up to 20 times greater signal sensitivity and 15 times less signal ...
As oil tops $100, the Iran war is testing Trump’s push for fossil fuels — and leaving U.S. consumers exposed to price spikes, experts say.
Israel has killed a string of senior Iranian leaders in airstrikes, aiming to weaken or topple the Islamic Republic. But past targeted killing campaigns show such tactics have limits.