Imagine a predator so rare that even seasoned trackers consider it a myth. The Saharan cheetah, with its ghostlike presence, ...

The emergency weather alert had come early Fourth of July morning: There would be life-threatening flash flooding in Kerr County, Texas.

Mr. Trump’s ideological war on universities is putting students, professors and scientists under pressure. That could ...

Three cities in Russia, one slum in India, and even Greenland, which Donald Trump is obsessing over, make it to this round-up ...

Every night, as darkness envelops us, one quiet presence of the moon watches over us. It’s not just a natural satellite or a ...