Dawn's imaging equipment is capable of taking hi-res images of Ceres and studying its surface geology as well as measurements of mineralogy with its visible and infrared mapping
spectrometer observing parts of Ceres in great detail.
This is the first time we see this kind of material elsewhere in the solar system in such a large amount," said Maria Cristina De Sanctis, lead author and principal investigator of Dawn's visible and infrared mapping
They used data from the visible and infrared mapping
spectrometer, a device that looks at how various wavelengths of light are reflected by the surface, allowing minerals to be identified.
It will gather the data to create a global infrared map with its Visible and Infrared Mapping
Spectrometer at low resolution, and some locations at higher resolution.
Sarah Badman, a Cassini visual and infrared mapping
spectrometer team associate at Lancaster University, England, said that scientists have wondered why the high atmospheres of Saturn and other gas giants are heated far beyond what might normally be expected by their distance from the Sun.
The latest results come from Cassini's visual and infrared mapping
spectrometre, which detected the dark areas in the tropical region known as Shangri-La, near the spot where the European Space Agency's Huygens probe landed in 2005.
The spacecraft, which was launched in 2007, has a gamma ray and neutron detector instrument, which will gather information on cosmic rays during the approach phase, as well as an infrared mapping
Clark, who works with the US geological survey, is part of the team that analysed data from visual and infrared mapping
spectrometer on board Cassini -- which had had a flyby of the moon in 1999 -- as well as M3.
Jessica Sunshine of the University of Maryland and colleagues used infrared mapping
from the Deep Impact spacecraft to show water all over the moon.
Authorities initially said it charred 18,000 acres but infrared mapping
overnight showed the fire was smaller.
Some of the features are large enough for Cassini's visible and infrared mapping
spectrometer to perform a key test in the next year or two, when the sun climbs higher over Titan, says Cassini research Jonathan Lunine of the University of Arizona in Tucson.
Earlier estimates that placed the fire at 4,000 acres were made prior to infrared mapping
and may have included acreage burned in an adjacent spot fire, said Department of Forestry spokeswoman Arlene Whalen.