Just over 50 years ago, paleontologist Donald Johnson unearthed the remains of "Lucy," an ancient human relative who lived more than 3 million years ago. Now, another group of scientists have found ...

While millions of people have been able to enjoy checking off seeing this incredible natural wonder from their bucket list, ...

Sen aims to use the story-telling power of video to inspire, empowering everyone to witness planetary change and humanity's exploration of space.

The National Park Service informed superintendents Thursday about upcoming layoffs. An internal email reveals 2,300 ...