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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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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
In the beginning
View larger image | Not knowing what came before the Big Bang doesn’t stop physicists from theorizing. In the eternal inflation scenario, the known universe bubbled out of a larger multiverse (right). Another model (below) suggests that the universe cycles through a series of contractions and bounces.
Credit: E. Feliciano
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By Leila Schneps and Coralie Colmez
Review by Janet Raloff
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