Community opposition helped sink plans for a nuclear waste repository in Nevada's Yucca Mountain. Meanwhile, thousands of tons of radioactive waste are piling up at temporary storage sites around the country. As the U.S. once again looks for a new permanent storage site, an expert panel says local buy in will be key.

Melissa Block speaks with John Vucetich, a wildlife ecologist from Michigan Technological University who is leading the wolf-moose winter study at Isle Royale National Park. The park is located in the northwest corner of Lake Superior. The study is in its fifth decade.

The Obama administration released more details Thursday about the energy plan he previewed at the State of the Union this week. He announced an oil-and-gas-lease sale on nearly 38 million acres in the Gulf of Mexico — and proposals for new incentives to increase the use of natural gas in heavy trucks and buses.

Gardeners: Take heed. An updated plant map shows that the United States is getting warmer. That means spring planting may come earlier and some plants can tolerate new northern latitudes.

Astronomers want increasingly large telescopes to peer into the depths of space. To build a solid telescope mirror nearly 30 feet across, you need an oven that heats to 2,100 degrees Fahrenheit and spins around like a top.