Enjoy this mix of Amy Winehouse songs, which shows her musical ability and the diversity of her sound.

After the rains, there is enough water and food for all to share in the desert and Saguaro National Park can bask in all its glory.

All Hands Volunteers is a US-based, non-profit organization that provides hands-on assistance to survivors of natural disasters around the world with maximum impact and minimum bureaucracy. Their mission is to enable volunteers to provide assistance to communities affected by natural disasters.

The flamboyant pop sensation Lady Gaga talks about the creative process behind her single "Applause." She explains how being forced to slow down by a hip injury actually helped her to focus, about working with famous names from the world of art, and exactly how much it means to her to be performing again for her adoring fans.

The philosopher Friedrich Nietzsche questioned the ability of science to explain and give meaning to our world, daring us to think critically not only about religion, but science, and knowledge itself. Learn all about his ideas in this fun video inspired by vintage video games.

If a hotel with an infinite number of rooms has an infinite number of guests, how could it free up space when new guests arrive? Hilbert's “Grand Hotel” paradox has fascinated mathematicians, physicists, philosophers, and theologians, as it encourages another way of thinking about the notion of infinity.

Schrodinger’s hypothetical experiment involved putting an unfortunate cat into a box with a Geiger counter and a vial of deadly poison. Until the box was opened, the cat could be said to be alive, or dead… or possibly in both of these states simultaneously.

peta2: At only 16 years old, Tia Blanco is already one of the top women surfers in the world. Learn how her vegan diet has helped Tia surf her way to the top!