U.S. military strikes overnight in which President Donald Trump said Iran's main nuclear sites were "obliterated" will put to the test the widely held view that such attacks can delay a nuclear ...

PhoSim simulates the atmosphere, including air turbulence, as well as distortions from the shape of the telescope’s mirrors and the electrical properties of the sensors. The photons are propagated ...

The life-threatening condition sepsis occurs when an infection triggers a chain reaction throughout the body. Inflammation can lead to blood clots and leaking blood vessels, and can ultimately cause ...