Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. 24/7 Space News .




IRON AND ICE
Dawn Creates Guide to Vesta's Hidden Attractions
by Staff Writers
Pasadena CA (JPL) Dec 20, 2013


This colorized composite image from NASA's Dawn mission shows the crater Antonia, which lies in the enormous Rheasilvia basin in the southern hemisphere of the giant asteroid Vesta. The area lies around 58 degrees south latitude. Antonia has a diameter of 11 miles (17 kilometers). Image credit: NASA/JPL-Caltech/UCLAMPS/DLR/IDA

Some beauty is revealed only at a second glance. When viewed with the human eye, the giant asteroid Vesta, which was the object of scrutiny by the Dawn spacecraft from 2011 to 2012, is quite unspectacular color-wise.

Vesta looks grayish, pitted by a variety of large and small craters.

But scientists at the Max Planck Institute for Solar System Research in Katlenburg-Lindau, Germany, have re-analyzed the images of this giant asteroid obtained by Dawn's framing camera.

They assigned colors to different wavelengths of light and, in the process, revealed in unprecedented detail not only geological structures that are invisible to the naked eye, but also landscapes of incomparable beauty.

Researchers at Max Planck can now see structures such as melts from impacts, craters buried by quakes and foreign material brought by space rocks, visible with a resolution of 200 feet (60 meters) per pixel.

"The key to these images is the seven color filters of the camera system on board the spacecraft," said Andreas Nathues, the framing camera team lead at Max Planck. Since different minerals reflect light of different wavelengths to different degrees, the filters help reveal compositional differences that remain hidden without them.

In addition, scientists calibrated the data so that the finest variations in brightness can be seen.

In the new colorized images, different colors indicate different materials on the surface of Vesta. They reveal impressive formations and a wide range of geological diversity, said Nathues. But above all, the color-coded images are impressive because of their beauty.

"No artist could paint something like that. Only nature can do this," said Martin Hoffman, a member of the framing camera team also at Max Planck. Pictures of the crater Aelia, the crater Antonia and an area near the crater Sextilia show some of Vesta's most impressive sites.

Dawn visited Vesta from July 2011 to September 2012. The spacecraft is currently on its way to its second destination, the dwarf planet Ceres. Ceres is the largest object in the main asteroid belt between Mars and Jupiter.

.


Related Links
Dawn at NASA
Dawn at JPL
Asteroid and Comet Mission News, Science and Technology






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





IRON AND ICE
Chinese flyby of asteroid shows space rock is "rubble"
Paris (AFP) Dec 12, 2013
China's first flyby of an asteroid shows that a gigantic space rock which once triggered a doomsday scare is essentially rubble, scientists reported on Thursday. On December 13 2012, a lunar probe called Chang'e-2 rendezvoused with asteroid 4179 Toutatis as the rock, bigger than a city block, swept by Earth at a distance of around seven million kilometres (4.4 million miles). Describing ... read more


IRON AND ICE
Most Chang'e-3 science tools activated

China's Lunar Lander May Provide Additional Science for NASA Spacecraft

China plans to launch Chang'e-5 in 2017

Mining the moon is pie in the sky for China: experts

IRON AND ICE
Opportunity Communications Remain Slow Due To Odyssey Issues

New Views of Mars from Sediment Mineralogy

NASA poised to launch Mars atmosphere probe

The Tough Task of Finding Fossils While Wearing a Spacesuit

IRON AND ICE
Sierra Nevada Completes CCDev2, Begins Dream Chaser Flight Test Program

Russia's Putin pledges $1.5 billion for basic science research

Asia's year in space triggers applause but also worry

NASA's network for talking to space missions nears 50th anniversary

IRON AND ICE
Deep space monitoring station abroad imperative

Chinese sci-fi writers laud moon landing

China deploys 'Jade Rabbit' rover on moon

The Dragon Has Landed

IRON AND ICE
NASA and Russia prolong contract on Soyuz taxi flights to ISS

Astronauts Finalizing Spacewalk Preparations

NASA plans 3 urgent spacewalks to fix ISS coolant system, suspends cargo delivery

NASA rigs up snorkel in spacesuit after risky water leak

IRON AND ICE
Gaia secured inside fairing

India to decide December 27 on GSAT-14 launch date

Arianespace orders 18 rockets for 2 bn euros

Iran sends second monkey into space

IRON AND ICE
Gaia Mission Could Help Map Exoplanets

First detection of a predicted unseen exoplanet

Astronomers solve temperature mystery of planetary atmospheres

Nearby failed stars may harbor planet

IRON AND ICE
Oracle to buy cloud firm for $1.5 bn

Uranium (IV) found to be mobile in a natural wetland

Leaner Fourier transforms

Russia rebuilding lost radar coverage




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement