Science

NASA's Martian Phoenix Probe Spots Snow Falling in Skies Over Red Planet NASA's Phoenix lander probe has spotted snow falling from clouds high above Mars, increasing the number of sites where frozen water has been discovered on the Red Planet, the U.S. space agency said.

Emergent's Anthrax Vaccine Found in Study to Be Effective With Fewer Doses A shortened course of vaccination with Emergent BioSolutions Inc.'s anthrax vaccine could be just as effective and less painful, researchers said.

Gene Variation in Fat Cells Signals Reduced Colon Cancer Risk, Study Finds People with a common genetic variation in their fat cells may have some protection against developing colon cancer, according to a study that provides the first DNA link between the deadly tumors and obesity.

Everglades Restoration Stymied by Delays as Ecosystem Falters, Report Says A project to restore natural water flow to Florida's Everglades is making little progress because of federal delays in planning and funding, a report said.

News Reports on Drug Studies Often Omit Funding Source, an Analysis Finds Newspapers and Internet news sites should do a better job of reporting medical studies by including the source of funding for the studies, according to an analysis published today.

Carbon Output Grew Worldwide Last Year, Jeopardizing Global Warming Fight Manmade emissions of carbon dioxide grew 2.5 percent to a record last year as international efforts to fight global warming fail to curb the main gas blamed for rising temperatures, a team of scientists said.

Tiny Heart Pump Saved Lives of Children Awaiting Transplants, Study Says Miniature pumps that take over for a damaged heart can keep the smallest children alive as they wait, sometimes for months, until a donated organ is available, a study found.

Cholesterol-Lowering Drugs Don't Cause Neurological Disorder, U.S. Finds Cholesterol-lowering medicines such as Pfizer Inc.'s Lipitor and AstraZeneca Plc's Crestor don't increase the risk of the neurological disorder known as Lou Gehrig's disease, U.S. regulators said.

Safer Powerful Embryonic-Like Stem Cells Created by Harvard Researchers Ordinary cells from mice can be manipulated to acquire the power of embryonic stem cells in a way that's less likely to trigger cancer than the current method, Harvard University researchers said today in the journal Science.

Drug-Coated Heart Stents Save More Cardiac Victims, Researchers Determine Drug-coated stents cut death rates for heart attack victims by 16 percent over older, bare-metal versions, researchers said, offering fresh evidence for the safety of the next generation of the devices.