Researchers have developed an ultra-compact passive true time delay device that could help reduce the size, complexity, power requirements and cost of phased array designs. The device uses the ...

During Donald Trump’s second presidency, ProPublica will focus on the areas most in need of scrutiny. Here are some of the issues our reporters will be watching — and how to get in touch with them ...

In a first-of-its-kind occurrence, about 15 red octopuses in the La Jolla aquarium's care have transitioned from a free-swimming, planktonic stage to seafloor settlement stage ...