What appears to be a global surge of unrest may signal a shift in the political foundations that hold nations together.

Abstract: Polarized scanning atmospheric corrector (PSAC) is an optical sensor onboard HuanjingJianzai-2 (HJ-2) A/B satellite. One of its missions is to monitor precipitable water vapor (PWV) by using ...

Abstract: Accurate cloud detection via satellites is important for cloud radiative forcing estimation and disaster weather monitoring. Current polar-orbiting satellite cloud observations are limited ...

Algorithms are designed to make medicine more accurate. But when race is factored in, they can worsen inequality. NOVA is available to stream on pbs.org and the free PBS App, available on iPhone, ...