Talk of the Nation on KTTZ HD2

Questions remain about the motives of the shooter who led Sunday's deadly attack at a Sikh place of worship, known as a gurdwara, in Oak Creek, Wis. Authorities have identified Wade Michael Page as the shooter in the rampage that left six others dead.

The Mars Science Laboratory rover, named Curiosity, made a successful landing on the surface of the red planet, drawing shouts and cheers from the mission control staff at NASA's Jet Propulsion Laboratory. University of Redlands professor Tyler Nordgren explains what Curiosity may discover.

If all goes according to plan, the Mars Science Laboratory rover, nicknamed 'Curiosity,' will touch down on the red planet this weekend following what NASA has called 'seven minutes of terror' during the descent. NPR science correspondent Joe Palca and John Grunsfeld, head of NASA's Science Directorate, give a preview of the mission and talk about what scientists hope to learn from the latest ambassador to Mars.

A court battle between Apple and Samsung is underway in California, with each side arguing over intricate patent and trademark claims covering how the companies' phones and tablets work, look, and feel. Robin Feldman, professor at the UC Hastings College of the Law, explains some of the key issues in the court case and how it might affect the technology industry.

What is the role of humans in climate change? "Call me a converted skeptic," physicist Richard Muller wrote in an Op-Ed in the New York Times this week, describing his analysis of data from the Berkeley Earth Surface Temperature project. Though Muller was once a notable skeptic regarding studies connecting human activity to climate change, he has now concluded that "humans are almost entirely the cause" of global warming.

Transcript

IRA FLATOW, HOST:

You're listening to SCIENCE FRIDAY; I'm Ira Flatow. A little later in the program, we'll be talking about NASA's landing of its new probe, Curiosity, to the Martian surface. But with us now is Flora Lichtman with our Video Pick of the Week. Hi, Flora.

FLORA LICHTMAN, BYLINE: Hi, Ira.

FLATOW: This is a soothing...

(LAUGHTER)

FLATOW: I mean, I saw the video pick. It's so soothing, although it's on a topic that you wouldn't think is soothing at all.

Dr. Jay Parkinson envisions a future of more efficient, hassle-free healthcare--and it starts online. He says he and his colleagues at the New York City-based healthcare start-up Sherpaa can solve 70 percent of patients' problems via email, eliminating a trip to the doctor's office.

To avoid the crowds at Niagara Falls, why not sail the Great Pacific Garbage Patch, or ogle oil refineries in Port Arthur, Texas? In Visit Sunny Chernobyl: And Other Adventures In The World's Most Polluted Places, Andrew Blackwell describes traveling to the world's most contaminated destinations.