Science News

In the February 13 Issue:

Sperm swim with the help of a proton channel recently identified by scientists. The proton channel Hv1 (shown here in green) is abundant on the tails, or flagella, of human sperm. DNA (blue) and power-producing mitochondria (red) are also shown. Full Story Yuriy Kirichok

SN Today:

Inflammatory bowel disease hikes blood clots Study finds people with Crohn’s disease or ulcerative colitis have greatest risk during painful episodes. Read the full story. | Feb 8th 2010 Found in: Body & Brain
In Memoriam: In life and death, a scientist brings out the best in others BLOG: Science News reporter Bruce Bower describes how relationship researchers gathered to honor Caryl Rusbult’s influential career after her recent death. Read the full story. | Feb 5th 2010 Found in: Humans and Science & Society
Protein clumps like a prion, but proves crucial for long-term memory Study in slugs hints that some molecular 'misbehavior' in neurons may help solidify learning. Read the full story. | Feb 4th 2010 Found in: Body & Brain and Genes & Cells
Journal retracts flawed study linking MMR vaccine and autism Deleted Scenes Blog: Biomedical reporter Nathan Seppa describes latest chapter in controversy created by now debunked research. Read the full story. | Feb 3rd 2010 Found in: Biomedicine and Science & Society
Small study hints SSRIs delay breast milk in new moms Women taking the antidepressant drugs began lactating later. Read the full story. | Feb 2nd 2010 Found in: Body & Brain
A modest proposal for federal science spending President’s proposed FY 2011 budget outlines 5.9 percent increase in nondefense-related research and development funding. Read the full story. | Feb 1st 2010 Found in: Science & Society
Skeleton of Western man found in ancient Mongolian tomb A genetic analysis of a skeleton from an ancient Asian tomb illuminates the spread of Indo-Europeans. Read the full story. | Jan 29th 2010 Found in: Archaeology and Humans
Water vapor slowed recent global warming trend A decline in stratospheric water vapor has slowed Earth’s surface warming slightly in recent years. Read the full story. | Jan 28th 2010 Found in: Climate Change, Earth, Earth Science and Environment

SN Multimedia:




"Whaaa!" in French	Cancer cells on the move	Bar flies
A baby may cry in his mother tongue	Rare observations of metastasis in real time	Fruit flies can show alcohol addiction similar to humans

In the News:

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FOR KIDS: Teaching math, teaching anxiety
2.8.10 - Teachers' math worries could affect students' performance Found in: Science News For Kids
FOR KIDS: Watering the air
2.8.10 - Crop irrigation and farming practices could mean a cooler, wetter Midwest Found in: Science News For Kids
A charge for freezing water at different temperatures
2.5.10 - Experiments use positive and negative electric forces to tweak ice formation Found in: Materials Science, Matter & Energy, Molecules and Physics
Pluto blushes red
2.4.10 - Newly released images show mysterious color change Found in: Atom & Cosmos
Sperm's pore propulsion
2.4.10 - Researchers identify proton channel that helps regulate frantic dash Found in: Body & Brain and Genes & Cells
Oldest feathered dino shows its colors
2.4.10 - Finding suggests plumage first evolved for display, not flight Found in: Earth, Life, Paleobiology and Paleontology
Florida’s big chill may have hammered corals near shore
2.4.10 - Early reports from rare cold bleaching offer hope offshore Found in: Biology, Earth, Life and Zoology
Algae use quantum trick to harvest light
2.3.10 - Study detects predicted wavelike properties during photosynthesis Found in: Matter & Energy
Leaf veins loopy for a reason
2.2.10 - Circular networks are best for getting around a bad spot, varying load Found in: Computers and Life
Ancient dawn's early light refines age of universe
2.2.10 - Satellite images reveal new aspects of Big Bang's relic radiation Found in: Atom & Cosmos
FOR KIDS: Surprise visitor
2.1.10 - Newly discovered cricket pollinates orchids in nighttime rendezvous Found in: Science News For Kids
FOR KIDS: Supersonic splash
2.1.10 - Coming soon to a pond near you: air moving faster than the speed of sound Found in: Science News For Kids
Skin cells transformed directly into neurons
2.1.10 - Researchers sidestep conversion to an embryonic state Found in: Genes & Cells
Keeping black bears wild
1.29.10 - Wildlife managers test out ways to keep bears away from food, people Found in: Environment, Life and Science & Society

Reader Favorites

Blogs:

Science & the Public EPA reviews hints of weed killer's fetal risks
By Janet Raloff Feb 4th 2010

Deleted Scenes Journal retracts flawed study linking MMR vaccine and autism
By Science News Staff Feb 3rd 2010

On the Scene How better weather models can save peanut farmers money
By Science News Staff Jan 19th 2010

Columns:

Comment Making informed decisions about mammograms
By Lisa Schwartz Jan 29th 2010

Math Trek Teaching a computer to spot a bogus Bruegel
By Julie Rehmeyer Jan 11th 2010

Not to Miss:

Astronomy meeting round-up

Complete Copenhagen coverage

2009 Science News of the Year

Black holes powering starships

SN Bookshelf:

Book Review: What On Earth Evolved? 100 Species That Changed the World by Christopher Lloyd
Review by Sid Perkins
Buy now | More Books

Book Review: The Joy of Chemistry: The Amazing Science of Familiar Things by Cathy Cobb and Monty L. Fetterolf
Review by Rachel Ehrenberg
Buy now | More Books

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