AP - The capsule that brought the first comet samples back to Earth is going on display at the Smithsonian National Air and Space Museum.

AP - The federal government took a new, ecosystem-based approach to the endangered species list on Tuesday, proposing an all-at-once addition of 48 species, including plants, two birds and a fly, that live only on the Hawaiian island of Kauai.

Reuters - Scientists have unearthed the remains of a large meat-eating dinosaur with a breathing apparatus much like a modern bird, fortifying the link between birds and dinosaurs and helping to explain the evolution of birds' unique system of breathing.

AFP - In an unprecedented discovery, NASA's Phoenix Mars Lander has found snow falling from clouds on Mars, scientists said Tuesday.

AP - NASA's Phoenix spacecraft has discovered evidence of past water at its Martian landing site and spotted falling snow for the first time, scientists reported Monday. Soil experiments revealed the presence of two minerals known to be formed in liquid water. Scientists identified the minerals as calcium carbonate, found in limestone and chalk, and sheet silicate.

AFP - World oil prices fell slightly in Asia on Tuesday following a nearly 10 percent drop in New York after US legislators dramatically rejected a plan to bail out the ailing financial sector.

Reuters - Scientists have unearthed the remains of a large meat-eating dinosaur with a breathing apparatus much like a modern bird, fortifying the link between birds and dinosaurs and helping to explain the evolution of birds' unique system of breathing.

AP - Mexican officials have evacuated 7,500 people and are keeping oil wells shut in Veracruz due to severe flooding from heavy rains along Mexico's Gulf coast.

LiveScience.com - A huge carnivorous dinosaur that lived about 85 million years ago had a breathing system much like that of today's birds, a new analysis of fossils reveals, reinforcing the evolutionary link between dinos and modern birds.