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David Maidment is helping experts access water information
"Our water supply systems are dependent on how much water resources we've got, we don't know what the condition of our water system is," says David Maidment.
October 12, 2009
Stephan Schuster suggests new strategy to help endangered species
Stephan Schuster and his team compared genes from 18 different mammoths. He discovered mammoths became less genetically diverse the got closer to extinction.
October 12, 2009
John Ochsendorf builds on ancient architecture for green ideas
Listen to John Ochsendorf, engineer and architectural historian at MIT, talk about what we can learn about "green" design from buildings that are hundreds or thousands of years old.
October 12, 2009
Amory Lovins: ‘Efficiency is cheaper than fuel’
Amory Lovins says the technologies for creating and retrofitting factories, homes, and cars to use energy-efficient materials already exist.
October 12, 2009
Do animals laugh, is it in animal behavior?
Do animals laugh? If you tickle a chimp, it'll make a panting noise that sounds like a handsaw cutting wood. When dogs play, they wag their tails.
October 9, 2009
Why is Jupiter called a failed star?
Jupiter is the biggest planet in our solar system, but it isn't massive enough to be a star. Stars require a certain amount of mass to spark thermonuclear fusion - in other words, to shine.
October 9, 2009
Gravity, does it have a specific speed?
Today's scientists theorize that gravity might travel in space at light speed, as a massless particle called a "graviton."
October 9, 2009
What makes the night sky dark?
On any clear evening, you can see the curved line of Earth's shadow ascending in the eastern sky. Earth's own shadow makes the night sky dark.
October 9, 2009
NASA mission that bombarded the moon
The goal of the NASA LCROSS mission was to explore a source of hydrogen at a crater at the moon's south pole, where scientists suspected the water ice.
October 9, 2009
Saturn has solar system’s biggest ring around it
The ring has a diameter equivalent to 300 Saturns lined up side to side. It’s also thick - some Saturn could fit into its vertical height 20 times.
October 7, 2009
