Military experience gained from fighting in Syria’s civil war and decades of clashes with Israel has strengthened the Iran-backed group, but politically, its clout among Lebanon’s populace may be wan…

U.S. space exploration inspired a generation of students and innovators, but NASA’s role has diminished, and the number of global space competitors is growing.

Nations are reexamining their interests and capabilities in the Arctic, as climate change in the region presents new economic opportunities and security challenges.