Early reports from the most mammoth sky surveys ever conducted are yielding a trove of findings, including the two most distant quasars known in the universe, new knowledge about the large-scale clumping of galaxies, and more evidence about the size and distribution of asteroids in our solar system. (p. 356)

A U.S. Fish and Wildlife Service biologist has spied a trio of California condors, released to the wild from captive-breeding programs sometime over the past 6 years, attending a pair of eggs. (p. 357)

A gene therapy using skin cells that are genetically modified to make clotting proteins, multiplied in a lab, and reinjected into a person eases some bleeding in patients with severe hemophilia. (p. 357)

A new map of the magnetic anomalies in Antarctica and the seafloor surrounding the continent is giving researchers a fresh tool to use in analyzing geologic features that lie hidden beneath thousands of feet of ice or storm-tossed seas. (p. 358)

The newly solved structure of a Helicobacter pylori acid-fighting enzyme has scientists divided about how the enzyme works. (p. 358)

Infrared photography has revealed that catfish can stalk their prey by following wakes underwater. (p. 359)

T cells primed for autoimmune behavior may actually preserve nerves after a damaging blow. (p. 359)

Astronomers probe Pluto's place in the solar system. (p. 360)

The forensic analysis of trace fossils such as footprints, nests, burrows, and even coprolites—fossilized feces—reveal subtle clues about ancient species, their behavior, and their environment. (p. 362)

Giving infants intermittent doses of antimalarial drugs during their first year prevents serious illness in most cases and doesn't leave them susceptible to harsh disease in their second year. (p. 365)

Angiostatin, a drug that cured cancer in mice, appears safe to use in preliminary tests on people with cancer. (p. 365)

The National Heart, Lung, and Blood Institute has developed new guidelines for physicians that could triple the number of people taking cholesterol-lowering medication. (p. 365)

Birds that advertise their presence to potential prey may improve their chances of catching a meal. (p. 365)

A female cardinal learns about as many songs as a male but in one-third the time. (p. 365)

A new computer model of baseball pitching helps give pitching robots humanlike abilities and may have enabled engineers to solve a half-century-old puzzle of baseball science. (p. 366)