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Nothing conveys the excitement of space exploration like pictures from another planet. Now NASA is planning to go one better than...
There aren't very many scientists who achieved rock star status. Stephen Hawking, who has died at the age of 76, family members...
With humor and insight, Neuroscientist Dr. Stuart Firestein gave a short talk in Richmond, Virginia on ignorance and uncertainty...

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Question Your World: Can We Power The World By Using Our Feet?

The challenge of providing energy for a growing population while simultaneously not contributing to human caused climate change can seem like a tricky proposition. Clean energy traditionally has been associated with solar, wind, hydro, and other such green energy methods. As the planet’s energy needs grow we’ll need more creative approaches to meeting our energy needs. Some scientists have been thinking outside the box by using human commuter’s feet to generate power that is not only renewable, but does not rely on external variables like sunlight, wind, or water.

The Color Of Leaves: Why They Change Their Clothes In The Autumn

Leaves in the spring and summer are mostly a pretty uniform green color. For that, you can thank the chemical compound known as chlorophyll. Chlorophyll is responsible for the process of photosynthesis, which takes sunlight and converts it into the sugars needed to sustain the tree. There are a variety of other chemical compounds, with characteristic colors other than green, always present in the leaves; however, the green chlorophyll dominates and masks your ability to see them.

Question Your World: How Can We See Just The Human Impact On Our Atmosphere?

On Dec 7, 1972 Apollo 17 astronauts took a photo of the Earth that would go on to be known as the Blue Marble. This was one of the most famous photos taken of the entire planet from space. Soon after this photo was released the conservation movement took off at top speed. We were finally given a visual of the home that all humans, regardless of nationality or political affiliation, commonly share.