Feature
- Microbes
Microscopic menagerie
The microbes dwelling in and on multicellular organisms should be viewed as evolutionarily inseparable from their hosts, some biologists argue.
- Humans
Mother lode
Certain sugar molecules in human breast milk do more to foster beneficial microbes, and banish harmful ones, than they do to nourish newborns.
- Microbes
The vast virome
When it comes to the microbiome, bacteria get all the press. But virologists are starting to realize that their subjects also do a lot more than make people sick.
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- Life
Year in Review: Gift of steroids keeps on giving
Mouse muscles stay juiced long after doping ends.
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- Astronomy
Year in Review: Visitor from the Oort cloud
A visitor from the outer solar system flies past the sun.
- Math
Year in Review: Progress made toward twin prime proof
A surprising advance sparks a flurry of work on the mathematical conjecture.
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- Cosmology
Year in Review: Dark energy gets more confusing
New data raise the prospect of a ‘Big Rip’ destroying the cosmos.
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- Planetary Science
Year in Review: Methane shortage on Mars
A trace of the gas is not enough to be a sign of life.
