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Dinosaurs were killed by volcanoes?
Since 1980, scientists have believed a meteorite impact in the Yucatan caused a mass extinction of species, including the dinosaurs. But geologist Gerta Keller of Princeton disagrees.
February 9, 2009
Cooperation necessary for polar research
Polar scientist Larry Hinzman talk about the technical challenges - and vital importance - of doing research at Earth's poles.
February 7, 2009
Dickson Despommier: Vertical farms feed cities from skyscrapers
Microbiologist Dickson Despommier envisions 'vertical farming' in city buildings - growing produce, even fish and poultry, in vertical greenhouses.
February 6, 2009
Google Earth goes undersea
In addition to being able to place markers and content below the sea surface, Google Earth has added bathymetry and a simulated ocean surface.
February 3, 2009
Soylent heat turns fiction to fact
Maybe there are less-than-dystopian scenarios utilizing concepts of 'recycling' that could be applied to an overpopulated, energy-starved world.
February 2, 2009
Energy Internet needed in a crowded world
An Energy Internet is one component of Thomas Friedman's vision to change the way America thinks about - and uses - energy.
February 1, 2009
Tectonics happening on Enceladus!
Astronomer Paul Helfenstein talks about some exciting tectonics - geological movements - on the planet Saturn's icy moon Enceladus.
January 29, 2009
Space moth: New solar system interacts with interstellar gases
Astronomer Dean Hines talk about an enormous, moth-shaped bunch of interstellar gas and dust showing signs of planet formation, it's dubbed "Space moth".
January 28, 2009
Saturn’s moon may have ice volcanoes
Hear astronomer Jonathan Lunine talk about possible ice volcanoes on Titan - Saturn's moon - the largest and very mysterious moon.
January 27, 2009
Affordable and green go together in home building
Fernando Pages builds homes that are affordable and green without the need for subsidies. Pages explains why green building is really advanced building, and how affordable and green go together.
January 25, 2009
