This week: Al Gore interview, wasps' "pepper spray" weapon, pre-Inca tomb discovery, chemical secret of Stradivarius violins, new butterfly species, and more.
Ancient carbon-rich globules could offer a glimpse into the solar system's planet-building past and may provide clues to how life on Earth first arose.
This week: Neandertal DNA rebuilt, robot heals itself, lizards evolve in a flash, panda gets "porn," Saturn hurricane is nearly as wide as Earth, and more.
An examination of distant stellar explosions shows that the mysterious force, which many think is causing the universe to expand, dates back at least 9 billion years.
NASA's Cassini spacecraft recently captured images of a huge hurricane-like storm at Saturn's south pole, the first such phenomenon ever spotted on another planet.
Atmospheric chemicals similar to those now found on Saturn's giant moon Titan might have been a major source of food for ancient life on Earth, a new study suggests.
The aging space telescope will get a service mission by 2008, the U.S. space agency announced, keeping the instrument operational until a replacement is ready in 2013.
The Viking landers may have missed signs of life on Mars in 1976, according to new research, leading scientists to call for amped-up technology on future missions.
At least 7 and perhaps as many as 16 new planets have been found at the heart of the galaxy, leading astronomers to conclude that "there are literally billions of planets" in the Milky Way.
John C. Mather and George F. Smoot have won the 2006 Nobel Prize in Physics for their research helping to solidify the big bang theory of the origin of the universe.
Strong winds in the upper atmosphere drew down a near-record amount of ozone-destroying gases last year, according to a new study, and such winds may become more frequent as Earth heats up.
Taking full advantage of a rare solar "backlight," NASA's Cassini spacecraft has discovered a faint new ring around Saturn, as well as other interesting ring features.
