Billions fewer birds are flying through North American skies than decades ago and their population is shrinking ever faster.

Rocks from the Apollo missions show there was strong magnetism on the Moon, but researchers now believe these rocks mark extremely rare increases in magnetic strength. As models have long suggested, ...

A unifying quality of the previous films in the Alien franchise is that they all focus on a “final girl,” a common hallmark of horror cinema. While Wendy might technically qualify for this description ...