Colony of salps Pegea confederata by Alexander Semenov
In a galaxy 250 million light-years from (Arp 220), astronomers have spotted a record-breaking seven supernovae all found at the same time .
Innovative wildlife filmmaker John Downer uses covert digital technology to bring human audiences astonishingly close to the most reclusive wild animals. With elephants and tigers as previous subjects, Downer’s latest offering is focused on the beautiful but endangered maritime species in Polar Bear: Spy On The Ice.
Saturn’s moon Enceladus appears to be cloaked in drifts of powdery snow around 330 feet (100 meters).
Scientists estimate that Enceladus’s low gravity—about one percent that of Earth—allows some of the ice emitted by the polar geysers to jet into space rather than falling back to the moon’s surface.
by Nasa
Aerial Photos Reveal Mysterious Stone Structures: The area near the Azraq Oasis in Jordan has hundreds of wheels, large structures made of stone that date back at least 2,000 years. These wheel structures are often found on lava fields and range from 82 feet to 230 feet (25 meters to 70 meters) across. Archaeologists used to believe that the Azraq Oasis wheels were used as a cemetery although that is now in doubt.
(Fonte: livescience.com)
The new laser guide star unit of the Allgäu Public Observatory in southwestern Bavaria, Germany, tests a powerful laser beam on August 18, 2011, while lightning also flashes in the background. (Credit: ESO/M. Kornmesser)
Burrunan Dolphin: An entirely new species of dolphin has been discovered in Australia, and not in some isolated lagoon but in the shadows of skyscrapers, scientists say.
(Fonte: National Geographic)
What does it feel like to fly over planet Earth?
A time-lapse taken from the front of the International Space Station as it orbits our planet at night. This movie begins over the Pacific Ocean and continues over North and South America before entering daylight near Antarctica. Visible cities, countries and landmarks include (in order) Vancouver Island, Victoria, Vancouver, Seattle, Portland, San Fransisco, Los Angeles. Phoenix. Multiple cities in Texas, New Mexico and Mexico. Mexico City, the Gulf of Mexico, the Yucatan Peninsula, Lightning in the Pacific Ocean, Guatemala, Panama, Columbia, Ecuador, Peru, Chile, and the Amazon. Also visible is the earths ionosphere (thin yellow line) and the stars of our galaxy.
The original data is from NASA’s “The Gateway To Astronaut Photography of Earth”.
Scientific Gold
(Photograph courtesy Science/AAAS)
Preserved for 70 to 85 million years, these feathers are part of a newly revealed trove of likely dinosaur and bird plumage found trapped in amber in Alberta, Canada.
The unusual find suggests a wide array of plumed creatures populated the time period—sporting everything from seemingly modern feathers to their filament-like forebears—and that even by this early date, feathers had become specialized, for example, for diving underwater, a new study says.
(Fonte: National Geographic)
