December 6, 2005Keep that sunscreen handy. The hole in the ozone layer will last 15 years longer than expected, scientists say.TAGS:chemical, atmosphere, scientist
December 17, 2004Bright streaks on the surface of Dione have long been believed to be ice, but they might be something else entirely.
Photos: Full moons over SaturnTAGS:Saturn, cloud, ice, moon, atmosphere, researcher, image, photograph
May 10, 2007Can stimulating plankton growth slow climate change? A crew from a company called Planktos is setting sail to find out. Image: Plankton bloomTAGS:carbon, ocean, atmosphere, meter, crew, method
October 4, 2004The craft wins the $10 million Ansari X Prize for private space travel when it reaches 100km for the second time. Photo gallery: A glimpse of SpaceShipOne's historic flightsTAGS:SpaceShipOne, craft, spacecraft, feat, aircraft, atmosphere