Scientists have confirmed that rocks collected recently in the Moroccan desert came from the Red Planet. University of Alberta meteorite expert Chris Herd, who has acquired one of the chunks, talks about how scientists analyze space rocks, and whether organic compounds might be found inside.
Up next, mindfulness. Ever find yourself going through day stuck in autopilot mode, waking up at 7:15, wolfing down your usual hot cereal, really, without really tasting it, while you read the paper, your emails, your Facebook feed.
Surgeons in Sweden replaced an American patient's cancerous windpipe with a scaffold built from nanofibers and seeded with the patient's stem cells. Lead surgeon Dr. Paolo Macchiarini discusses the procedure and the benefits of tissue-engineered synthetic organs.
The National Center for Science Education has long defended educators' right to teach evolution in public schools. Now climate science too is under attack. NCSE executive director Eugenie Scott talks about how teachers and parents can fight the push to get climate change denial into the classroom.
Science historian Howard Markel discusses the origins of the word moon and some of the lore surrounding it, including a 1638 book by the English bishop Francis Godwin entitled The Man in the Moone, which recounts a science fiction-style voyage to the moon.
The International Maritime Organization has decreed that by 2015, all large deep sea ships will be required to carry the latest in electronic navigation equipment. But does state-of-the-art navigation technology prevent shipwrecks like last week's off the Italian coast? University of Southern Mississippi hydrographer Max van Norden talks about the technology.
Search and rescue operations at the wreck of the Costa Concordia have resumed, after being halted for a third time, due to choppy waters and the partially submerged vessel's tendency to shift on the rocks near Italy's coast.
An online battle is raging between Israelis and Arabs, with each side unveiling credit card and other personal information of thousands of private citizens, as well as temporarily disabling high-profile websites, like the Tel Aviv and Saudi Arabian stock exchanges.
So far, the recent Web assaults seem to be the work of bored young people venting frustration. But others worry that these actions could easily escalate into a much larger online fight.