Originally published on Thu October 4, 2012 3:43 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?
Julia Keller's latest novel is A Killing in the Hills.
When the actor James O'Neill played the title character in a stage version of The Count of Monte Cristo, it was a piece of "good bad luck," his son Eugene O'Neill later said. James O'Neill could never escape the shadow of the role that made him famous.
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 8:53 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.