NASA's Mars rover Curiosity cut a wheel scuff mark into a wind-formed ripple at the "Rocknest" site to give researchers a better opportunity to examine the particle-size distribution of the material forming the ripple.
The director of NASA's Jet Propulsion Laboratory said last week that preliminary data showed the possibility that the agency's Mars Science Laboratory – the six-wheeled rover that landed on Mars in August — had found signs of carbon-containing molecules.
Wildlife ecologist Danielle Garneau is making a habit of tracking down roadkill. She actually seeks it out, hunting for clues about larger ecological trends. Garneau records it all on a free smartphone app, EpiCollect.
Standing by the side of the road in upstate New York, phone in hand, Garneau peers down at a dead, bloody and smelly skunk.
From NPR News, this is ALL THINGS CONSIDERED. I'm Melissa Block.
ROBERT SIEGEL, HOST:
And I'm Robert Siegel. We're going back in time now, millions of years or possibly tens of millions of years. We're talking about the age of the Grand Canyon and a new research paper that's generating a lot of impassioned debate.
This month the book club takes to the skies with the Tom Wolfe classic The Right Stuff, a behind-the-curtain look at the 20th century's most famous test pilots--including Chuck Yeager. Yeager joins the club to talk about his long career, and what he considers "the right stuff."
Photographer James Balog on Climate Change and 'Chasing Ice' — In the new documentary "Chasing Ice," photographer James Balog attempts to capture how the world's glaciers are being affected by climate change. As the film debuts across the country, Balog discusses the project, and what needs to be done to save Earth's shrinking glaciers.
This is SCIENCE FRIDAY, I'm Ira Flatow. Now that President Obama's been re-elected, it's clear that at least the president won't try to repeal Obamacare. But with all the political mud-slinging about the Affordable Care Act, the details sort of got lost, didn't they? Do you actually know what the law does for you, and just as importantly what it doesn't do, what changes to your health care kick in on January 1, what major changes kick in in 2014 and thereafter?
I don't mean auto-trading computers on Wall Street, unmanned weapons systems, Deep Blue and the World Wide Web.
I mean us. We are machines.
From the dawn of our history we have amplified ourselves with tools. We have cultivated skills that take our basic body schema and extend it out into the world with sticks and rakes and then arrows and guns and rails and phones. Where do you find yourself? Spread out all over the universe. And it has always been so, really.
We'll start in a cornfield — we'll call it an Iowa cornfield in late summer — on a beautiful day. The corn is high. The air is shimmering. There's just one thing missing — and it's a big thing...
...a very big thing, but I won't tell you what, not yet.
Instead, let's take a detour. We'll be back to the cornfield in a minute, but just to make things interesting, I'm going to leap halfway around the world to a public park near Cape Town, South Africa, where you will notice a cube, a metal cube, lying there in the grass.