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The scientist is known as much for his contributions to theoretical cosmology and quantum gravity as for his willingness to make science accessible for the general public. His work is the topic of a new biography by science writer Kitty Ferguson.

Lowry's father didn't have Alzheimer's but as he began to forget his past, the author says, she began to imagine a book about eliminating painful memories. The Giver has just been adapted into a film.

Caitlin Doughty has built a following on YouTube by humorously discussing the morbid elements of her profession. In her new book, she explains that she's been interested in death since childhood.

Virginia is dependent on coal mining and export, but it also faces routine flooding from rising sea levels. That irony is a very real, day-to-day problem for residents.

Virginia is dependent on coal mining and export, but it also faces routine flooding from rising sea levels. That irony is a very real, day-to-day problem for residents.

A new climate study led by the Scripps Institution of Oceanography finds reduced black carbon emissions that come mostly from diesel engines.

A California Assembly committee has punted on a bill which would require companies engaged in hydraulic fracturing, or fracking, to share information about the chemicals they use.

Airs Saturday, June 25, 2011 at 11 a.m. on KPBS TV

If you didn't know that spit makes a great spot remover, or where prison inmates smuggle cell phones, author Mary Roach can fill you in. There's more than digestion going on down there.

The heat-trapping gas hit a troublesome milestone last year in May when it reached levels of 400 parts per million of carbon dioxide. But this year, those levels are already being seen in March.