Jenna Bush Hager got candid about her marriage to husband Henry Hager during a touching moment on Today With Jenna & Friends.

A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...

The Earth is really, really old. Over 4 1/2 billion years old, in fact. How do we begin to comprehend a number that large? It helps to put it on a more fathomable scale. Watch to see where Earth's ...

What if the moon and planets were closer to Earth? That's what Nick Holmes decided to find out. Holmes, AKA "yeti dynamics" on YouTube, animated these 3D models. He is an amateur astronomer and is ...

With the Emotional Spectrum in trouble, the United Planets in disarray, and Sector 2814 – where our own planet Earth resides ... on television was Green Lantern: The Animated series.