The great life cycle of stars, from the moment they switch on to the point they destroy themselves, is caught in a new view of the Andromeda Galaxy.
Stat’s Birth and Death in Andromeda
January 5, 2011
Summer Lightning in Colorado
December 15, 2010
While waiting for skies to darken at a star party near Keota, Colorado last month, I directed my scope and camera toward a summer thunderstorm plowing across the plains. Photographer: Robert Arn
Roll Cloud Over Uruguay
December 12, 2010
Roll Clouds. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud. Potographer Daniela Mirner Eberl
Lenticular Clouds above Washington
November 25, 2010
Moist air forced to flow upward around mountain tops can create lenticular clouds. Water droplets condense from moist air cooled below the dew point, and clouds are opaque groups of water droplets. Photographer Tim Thompson
Lenticular clouds on top of Mount Rainier
November 20, 2010
Lenticular clouds (Altocumulus lenticularis) are stationary lens-shaped clouds that form at high altitudes, normally aligned perpendicular to the wind direction.
Romantic in Space: Home from Above
November 15, 2010
There’s no place like home. Peering out of the windows of the International Space Station (ISS), astronaut Tracy Caldwell Dyson takes in the planet on which we were all born, and to which she would soon return.
