Defense Secretary Pete Hegseth says he's rolling out a new screening program for “testosterone deficiency” among troops. In a video posted on social media Wednesday, he calls the move necessary ...

Illustration of solar wind streaming from a fuming sun drives auroras bright enough to be seen far from the poles, a dazzling ...

Two justices appeared before Congress to ask for $228m (£170.3m) in security funding as threats continue to rise - both in ...