Showing posts with label NASA. Show all posts
Showing posts with label NASA. Show all posts

Monday, March 26, 2007

Mars Reconnaissance Orbiter Flyover Animation


High-resolution images from NASA's MRO have been combined to provide this animated hypothetical flyover of Victoria Crater in Mars' Meridiani Planum region where the Mars Rover Opportunity has been exploring since September 2006. Opportunity has been examining the crater rim in a clockwise direction.

Victoria is about 800 meters (one-half mile) in diameter. This flyover approaches from the south, moving counterclockwise around part of the rim. Look for an enhanced glimpse of Opportunity where the rover was seen by the HRISE camera orbiting overhead.

Saturday, March 3, 2007

Alien World; So Familiar

Upstaged by this week's beauty shots of its parent, Saturn, the largest moon of the same, Titan, continues to reveal wonders truly all its own.

Larger than our own Moon, larger than the first planet, Mercury, this moon of Saturn with its dense atmosphere of Nitrogen - so thick that if you could stand on Titan's surface it would feel like standing on the bottom of a swimming pool - has the only open bodies of liquid, besides Earth, yet discovered. Lakes and lakes of methane. Which means that Titan is also far, far colder than Antarctica. The island in the radar image above is roughly the size of the Big Island of Hawaii. These are some very large bodies of liquid methane.

Drainage streams, valleys, mile-high mountains, volcanoes - cryo-volcanoes, spewing ices - rocks made not of silicates, like here at home, but of water ice, and dunes, dunes, dunes, for thousands of miles.

What a world.

Friday, March 2, 2007

Cronos, Father of Zeus


After more than a year of study, the Cassini spacecraft has been climbing higher and higher (not to mention lower and lower) in its orbital plane with respect to the glorious sixth planet. With each orbit of Saturn, Cassini speeds past the ring plane and the cameras are able to look down (and up) providing images and perspectives high above - about 40 degrees - and below the same.

“Finally, here are the views that we've waited years for,” said Dr. Carolyn Porco, Cassini imaging team leader at the Space Science Institute in Boulder, Colo. “Sailing high above Saturn and seeing the rings spread out beneath us like a giant, copper medallion is like exploring an alien world we've never seen before. It just doesn't look like the same place. It's so utterly breath-taking, it almost gives you vertigo.”

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, CO.