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- 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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- 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
Understanding Perennials: A New Look at an Old Favorite
Web edition: July 17, 2009
Print edition: August 1, 2009; Vol.176 #3 (p. 30)
An intimate portrait of perennials aims to give a deeper understanding of these garden standbys.
Houghton Mifflin Harcourt, 2009, 247 p., $40.
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