For those Earthlings lucky enough to be under cloudless skies during Tuesday's Venus transit, it took the form of a pea-sized dot gliding across the Sun's northern hemisphere. For more perspective, NASA has collected a stunning sampling of images both…
After witnessing the consequences of power outages in Nigeria's health facilities, obstetrician Dr. Laura Stachel came up with a solution: a suitcase containing elements to produce and store solar energy. Spencer Michels reports on the life-saving device that aims to…
OB/GYN Dr. Laura Stachel and her husband have revolutionized the way babies are delivered…
Dr. Laura Stachel and her husband founded We Care Solar to help bring light to the estimated 300,000 hospitals and clinics in the developing world that don't have reliable sources of electricity. Our slideshow highlights Stachel's work toward equipping remote…
Should the government help spur or back certain kinds of energy research? Jeffrey Brown discusses the political storm over the government's backing of the now-bankrupt solar panel manufacturer Solyndra with Eileen Claussen of the Center for Climate and Energy Solutions…
After the Obama administration-embraced solar-panel company Solyndra collapsed and defaulted on its government-backed loans, the surging U.S. solar industry is suddenly worried that the subsidies it receives -- tax credits and loans guarantees -- could dry up in the face…
For more on this story, go to http://www.pbs.org/newshour/…
Vinod Khosla is an influential venture capitalist in Silicon Valley. He was a cofounder of Sun Microsystems and later a partner at the venture capital firm Kleiner Perkins, which helped fund Google and Amazon. In 2004 he started his own…
Since undertaking market reforms in late 1970s, China has enjoyed an economic boom -- but the economic progress has also produced serious environmental damage and pollution problems. Margaret Warner reports on China's environmental woes and their impact on the run-up…
Pittsburgh, once described as the nation's "dirtiest city," is working hard to reverse that image with new energy efficient initiatives. Paul Solman looks at how the Steel City has become reinvigorated by implementing new "green" energy technologies.
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