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Contents
- Mystery Meteorite: The case for (and against) a rock from Mercury
- Hard Times for Theorists in a Post-Higgs World: The Large Hadron Collider’s big success leaves no clear avenue for new physics
- In the Eye of the Tiger: Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions
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Read articles, including Science News stories written for ages 9-14, on the
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Contents
- Infection time: Disease is more severe when it hits in the morning, at least in mice
- Explainer: Our bodies’ internal clocks: Biological clocks determine hunger, sleepiness and other daily rhythms
- Flu in the air: Germs tiny enough to pass through surgical masks may cause half of all cases
This just in: Milky Way as massive as 3 trillion suns
Heftier size puts our galaxy on par with neighboring Andromeda, implying a closer collision date. Findings also suggest Milky Way has four spiral arms.
Web edition: January 5, 2009
Print edition: January 31, 2009; Vol.175 #3 (p. 8)
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