Astronomers look to the Kuiper belt  for clues to the solar system’s history (p. 16)

Ardi shakes up the fossil record (p. 22)

Studies of human social networks go high-tech (p. 26)

Astronomers say this discovery and others suggest that finding habitable planets is 'only a matter of time.' (p. 5)

Infected squash plants smell delicious but taste terrible – perfect combination for tricking aphids into spreading disease (p. 8)

With bed-bug numbers on the rise in North America, researchers test homemade bug finders. (p. 8)

When birds sneak eggs into others' nest, mom and dad can learn to find their own. (p. 9)

Fossils show depression in upper jaw that held venom-producing glands. (p. 9)

Researchers have trapped light in an ultracold cloud of atoms for 1.5 seconds. (p. 10)

Radio observations of a dark, dusty cloud in a nearby star-forming region have revealed one of the earliest phases of star formation and may reveal new insights on starbirth. (p. 12)

A recently launched infrared observatory has discovered about 700 newly forming stars. (p. 12)

Differences in DNA methylation may account for why one sibling gets the autoimmune disease while the other stays healthy. (p. 13)

A new study suggests that myopia has increased by more than 60 percent since the 1970s. (p. 13)

Uncommon version seems to lessen risk of lung disease in smokers. (p. 13)

The GRACE satellites have tracked water movement from the Central Valley since 2003. (p. 14)

Seafloor eruption in the South Pacific is the deepest and most violent yet seen. (p. 14)

Blog: Measuring outsourcing of greenhouse gases. From the annual meeting of the American Geophysical Union. (p. 15)

With two USGS programs, Twitter, inexpensive seismic equipment transform citizens into scientists. (p. 15)

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Review by Kristina Bartlett Brody (p. 30)

Review by Rachel Zelkowitz (p. 30)

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