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One More Reason To Reach For A Paper Book Before Bed

Using an E-Reader before trying to nod off may disrupt sleep more than reading a paper book, a study suggests. Scientists suspect the screen's blue light is messing with a sleep-inducing hormone.

Promotional photo of renowned astrophysicist Neil deGrasse Tyson, host of "NOVA scienceNOW" with the Earth in his hands

NOVA scienceNOW: Dark Matter; Of Mice And Memory; Hany Farid; Wisdom Of The Crowds

Airs Wednesday, June 15, 2011 at 8 p.m. on KPBS TV

A visualization of the polarization of the Cosmic Microwave Background, or CMB, as detected by ESA's Planck satellite over the entire sky.

First Stars Fired Up 140 Million Years Later Than Previously Thought

New data collected from the European Space Agency's Planck telescope shows that the first starlight in the universe occurred about 560 million years after the Big Bang.

Dr. Ian Crozier survived Ebola, only to have his normally blue left eye turn green because of inflammation. Though the rest of his body was Ebola-free, his eye was teeming with the virus.

So It Turns Out There's A Lot We Don't Know About Ebola

New data on survivors shows a range of health problems, from loss of vision to arthritis. It's making researchers realize they need to learn more about how the virus affects the human body.

Marshall Tuck, a former charter schools executive who is running for the Superintendent of Pubic Education, responds to questions while appearing before the Sacramento Press Club in Sacramento, Sept. 25, 2014.

State Superintendent Candidate To Make Stops In San Diego

State superintendent of public instruction candidate Marshall Tuck is scheduled to begin a six-county bus tour with two stops in San Diego Monday.

Emmy Nominations For 'Transparent,' Tatiana Maslany Showcase New Talent

Nominations for the 67th Primetime Emmy Awards were announced Thursday. The field of contenders shows a welcome turn toward recognizing new talent and new sources for TV.

George Clinton's Musical Life, From The Barbershop To Hip-Hop

NPR's Renee Montagne talks to the funk legend about his new memoir, Brothas Be, Yo Like George, Ain't That Funkin' Kinda Hard on You?

White Potato Redux: Experts Say Spuds Are Not Nutritional Duds

An expert panel says white potatoes "contribute useful quantities of potassium and fiber" to our diets. Reversing itself, the panel says spuds should be included in WIC, a food aid program.

New History Puts Cartographers' Art 'On The Map'

Maps do more than help us get around, Simon Garfield makes evident in his tour through the history and science of map-making. They can unlock vast wealth, solve mysteries of science, project political power — even trace the outlines of the divine.

'Karen Memory' Builds Up A Good Head Of Steam

Elizabeth Bear's new novel makes thoughtful use of steampunk elements in a lively tale of brothel inhabitants defending their house against a rival — and in the process uncovering a political plot.

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