Science

The Two-Way
7:34 am
Sat May 11, 2013

Astronauts Go On Spacewalk To Fix Ammonia Leak

NASA.gov

Originally published on Sat May 11, 2013 4:11 pm

Two astronauts went on a last-minute spacewalk Saturday to replace a pump suspected of being the source of a serious ammonia leak.

It was unclear what caused the ammonia leak, NASA spokesman Rob Navias said, "but the installation of this spare pump package — at least at the moment — seems to have done the trick."

NASA officials called the spacewalk a success, but said it would take time to see if the leak was indeed stopped. Engineers will review photos the astronauts took at the site.

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Krulwich Wonders...
5:02 am
Sat May 11, 2013

Astronomy's Little Secret: The Hidden Art Of 'Moonsweeping'

La Luna

A few nights ago, (Wednesday, I think, around midnight), I was by my window looking up, and there, hanging in the sky, I saw the moon. Not all of it, just what the almanac used to call "a crescent" — what my mom called a "toenail moon." The whole moon, I knew, was up there, hidden in shadow. The crescent part was facing the sun. That's the part you can see at the beginning of each month, my second grade teacher, Mrs. Elkins taught us, using a flashlight and a tennis ball to demonstrate the phases of the moon. Scotty Miller, I remember, got to hold the tennis ball. Mrs.

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The Salt
4:30 am
Sat May 11, 2013

Tiny Mites Spark Big Battle Over Imports Of French Cheese

Microscopic bugs called cheese mites are responsible for giving Mimolette its distinctive rind and flavor.
Chris Waits via Flickr

Originally published on Tue May 14, 2013 2:28 pm

The Food and Drug Administration is currently embroiled in a surprisingly heated culinary standoff — pitting French cheese-makers (and American cheese-lovers) against regulators, all because of one very small problem: cheese mites.

Cheese mites are microscopic little bugs that live on the surfaces of aged cheeses, munching the microscopic molds that grow there. For many aged cheeses, they're something of an industry nuisance, gently brushed off the cheeses. But for Mimolette, a bright orange French cheese, they're actually encouraged.

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Environment
1:46 pm
Fri May 10, 2013

Atop A Hawaiian Mountain, A Constant Sniff For Carbon Dioxide

Researchers use the 120-foot tower atop Mauna Loa in Hawaii to collect air samples and measure the amount of carbon dioxide in the atmosphere. Mauna Kea looms in the distance.
Forrest M. Mims III forrestmims.org

Originally published on Tue May 14, 2013 12:22 pm

Climate scientists have a good reason to want to get away from it all. To get an accurate picture of the amount of carbon dioxide in the Earth's atmosphere, you have to find places where the numbers won't be distorted by cities or factories or even lots of vegetation that can have a major local impact on CO2 concentrations.

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Shots - Health News
11:47 am
Fri May 10, 2013

Kids With Autism Quick To Detect Motion

Did you see that?
iStockphoto.com

Originally published on Mon May 13, 2013 6:37 am

Children with autism see simple movements twice as fast as other children their age, a new study finds.

Researchers at Vanderbilt University and the University of Rochester were looking to test a common theory about autism which holds that overwhelming sensory stimulation inhibits other brain functions. The researchers figured they could check that by studying how kids with autism process moving images.

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