Originally published on Thu October 4, 2012 4:43 pm
You are 200 miles directly above the Martian surface — looking down. This image was taken by the Mars Reconnaissance Orbiter on Jan. 27, 2010. (The color was added later.) What do we see? Well, sand, mostly. As you scroll down, there's a ridge crossing through the image, then a plain, then dunes, but keep looking. You will notice, when you get to the dunes, there are little black flecks dotting the ridges, mostly on the sunny side, like sunbathing spiders sitting in rows. Can you see them?
Stefano Amabili walks under the sun in Miami Beach, Florida, in May. The Center for Disease Control and Prevention has found that more people are using sunscreen and protecting themselves from the sun's rays.
Originally published on Thu October 4, 2012 9:53 am
A sunny day at the beach has plusses and minuses for your health.
A little bit of sun can help your body produce vitamin D, but the sun's ultraviolet radiation raises your risk for skin cancer. And, it turns out, UV radiation poses another threat — it physically weakens your skin.
It's rare that a batter receives a standing ovation for a three-pitch strikeout. But that's exactly what happened last night in Miami.
Adam Greenberg came to the plate in a big-league uniform seven years after his only major-league at bat. As Mark told us last week, Greenberg was a Chicago Cub in 2005 making his major league debut against the Marlins.