Four Democrats from Arizona want more details from Homeland Security Secretary Kristi Noem about measles among immigration ...

CLEVELAND, Ohio – I am a naturalized citizen. For years, I lived in the United States as a resident alien, with a green card. I was never asked for my documentation, unless I was crossing the border ...

A newly described blue jellyfish in Japanese waters has stunned researchers with an otherworldly glow that looks less like a ...

For two weeks, medical experts monitor the astronauts as they remain indoors, live in isolation, and avoid physical touch, all to prevent harmful microbes from traveling to space.