The new National Geographic miniseries Secrets of the Penguins visits the type of world Avatar filmmaker James Cameron is ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Longtime NASA astronaut Don Pettit, who has ventured to space four times, returned to Earth on Saturday night from the International Space Station. Pettit, who turned 70 on Sunday, landed at 9:20 p.m.

The Report Card also describes the transformation of the Arctic tundra. Multiple wildfires have accelerated this change. When the impact of increased forest fire activity is included, the Arctic ...