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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
To celebrate the Hubble Space Telescope’s 20th anniversary, NASA released this composite visible-light portrait of a nearby star-forming region, the Carina nebula. Towers of gas and dust, the home to newborn stars, line the walls of the nebula, which lies about 7,500 light-years from Earth. The image captures the violent activity atop a pillar of gas and dust that stands three light-years tall. Intense ultraviolet radiation and streams of charged particles from hot newborn stars just outside this view are compressing the pillar, triggering the formation of new stars within it. Streamers of hot ionized gas flow off the ridges of the pillars while starlit wisps of gas and dust float around the peaks.
Credit: Credit: NASA, ESA, and M. Livio and the Hubble 20th Anniversary Team (STScI)
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Even if science can’t make life longer, perhaps a pill can make a long life better
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The gene patenting decision from a plaintiff’s point of view
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With everyday materials, two research teams conceal ordinary objects
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In mating display, male birds match moves to songs
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Coverage of the 2013 American Association for the Advancement of Science meeting
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The Year in Science 2012
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Three-part series on the scientific struggle to explain the conscious self
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Tables of contents, columns and FAQs on SN Prime for iPad
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By Leila Schneps and Coralie Colmez
Review by Janet Raloff
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