New types of electronic-paper pixels may eventually make it possible to view full-color video clips in your morning newspaper. (p. 195)

Killer whales may have been responsible for steep declines in seal, sea lion, and otter populations after whaling wiped out the great whales that killer whales had been eating. (p. 195)

Out of fuel and according to plan, the Galileo spacecraft ended an 8-year tour of Jupiter and its moons on Sept. 21, when it dove into the planet’s dense atmosphere. (p. 196)

Quickly losing immune-system defenses against some viruses may protect humans from far nastier bugs, a mathematical model suggests. (p. 196)

Biologists have deciphered the DNA sequence of a poodle, an accomplishment that may help researchers study more than 300 human diseases that also affect dogs. (p. 197)

Researchers have devised a new imaging technique for visualizing every carbon atom in the basic unit of graphite. (p. 197)

Metal concentrations in soil extracted from a Bolivian lake indicate that silver production in the region began 1,000 years ago, 4 centuries before well-known silver-making efforts by the Incas. (p. 198)

A coral reef may look like a high-oxygen paradise, but the first respiration tests of fish there show an unexpected tolerance for low oxygen. (p. 198)

Even in the 21st century, there's still room for old-fashioned, do-it-yourself ingenuity in experimental design for studying animal behavior. (p. 200)

NASA's plan to return the space shuttles safely to flight after the Columbia accident is coming under intense scrutiny. (p. 203)

If a new generation of vaccines pans out, the days of rotavirus, which kills at least 450,000 infants and children every year by causing severe diarrhea, may be numbered. (p. 204)

An orbiting observatory in space will sense atmospheric carbon dioxide levels around the globe, creating a detailed map of the greenhouse gas' sources and sinks. (p. 206)

A novel technique for patterning light-guiding channels through photonic crystals made of hydrogel nanoparticles may lead to faster, all-optical telecommunications technologies. (p. 206)

A hybrid material made of biodegradable polymers and carbon nanotubes yields an optimal scaffold for growing cartilage. (p. 206)

Growing drug crystals on different polymer surfaces may lead to improved medicines. (p. 206)