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Ceres Ever Closer

By Robert Trembley  |  18 Feb 2015

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This entry is part 6 of 27 in the series The Dawn Misson to the Asteroid Belt

These two views of dwarf planet Ceres were acquired by NASA’s Dawn spacecraft on Feb. 12, 2015, from a distance of about 83,000 km (52,000 mi) as Ceres rotated. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn probe continues to edge ever nearer to the dwarf planet Ceres, deep in the main asteroid belt. As it does, image resolution is increasing, and surface structures reveal themselves more clearly. The “mysterious bright spot” on the right sure looks like to me like a “fresh impact crater with a ray system.” Such an impact may have revealed lighter colored ices under a darker surface layer.

Highlighted Impact Basin on Ceres Highlighted Impact Basin on Ceres

If you click on the image above, you will be taken to a larger version of the image; look closely at the jumble of intersecting high crater walls – beautiful! The image to the left highlights the rim of a large impact basin. Looking at Ceres, the word “battered” comes to mind. I must admit no small amount of anticipation to seeing color images, and jets… I really hope Dawn observes jets of water.

Below is JPL’s Press Release: 2015-061


Craters and mysterious bright spots are beginning to pop out in the latest images of Ceres from NASA’s Dawn spacecraft. These images, taken Feb. 12 at a distance of 52,000 miles (83,000 kilometers) from the dwarf planet, pose intriguing questions for the science team to explore as the spacecraft nears its destination.

“As we slowly approach the stage, our eyes transfixed on Ceres and her planetary dance, we find she has beguiled us but left us none the wiser,” said Chris Russell, principal investigator of the Dawn mission, based at UCLA. “We expected to be surprised; we did not expect to be this puzzled.”

Dawn will be gently captured into orbit around Ceres on March 6. As the spacecraft delivers better images and other data, the science team will be investigating the nature and composition of the dwarf planet, including the nature of the craters and bright spots that are coming into focus. The latest images, which have a resolution of 4.9 miles (7.8 kilometers) per pixel, represent the sharpest views of Ceres to date.

Image of Asteroid 4 Vesta Asteroid 4 Vesta. Image credit: NASA/JPL-Caltech/UCAL/MPS/DLR/IDA

The spacecraft explored the giant asteroid Vesta for 14 months during 2011 and 2012. Scientists gained numerous insights about the geological history of this body and saw its cratered surface in fine detail. By comparing Vesta and Ceres, they will develop a better understanding of the formation of the solar system.

Dawn’s mission to Vesta and Ceres is managed by the Jet Propulsion Laboratory for NASA’s Science Mission Directorate in Washington. Dawn is a project of the directorate’s Discovery Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama. UCLA is responsible for overall Dawn mission science. Orbital ATK, Inc., of Dulles, Virginia, designed and built the spacecraft.  JPL is managed for NASA by the California Institute of Technology in Pasadena. The framing cameras were provided by the Max Planck Institute for Solar System Research, Gottingen, Germany, with significant contributions by the German Aerospace Center (DLR) Institute of Planetary Research, Berlin, and in coordination with the Institute of Computer and Communication Network Engineering, Braunschweig. The visible and infrared mapping spectrometer was provided by the Italian Space Agency and the Italian National Institute for Astrophysics, built by Selex ES, and is managed and operated by the Italian Institute for Space Astrophysics and Planetology, Rome. The gamma ray and neutron detector was built by Los Alamos National Laboratory, New Mexico, and is operated by the Planetary Science Institute, Tucson, Arizona.

For more information about Dawn, visit: http://dawn.jpl.nasa.gov

Elizabeth Landau
NASA’s Jet Propulsion Laboratory, Pasadena, Calif.
818-354-6425
Elizabeth.Landau@jpl.nasa.gov

NASA’s Dawn Spacecraft Artist’s concept of NASA’s Dawn spacecraft. The giant asteroid Vesta, Dawn’s next destination, is on the lower left. Another larger asteroid and Dawn’s second destination, Ceres, is on the upper right. Image credit: NASA/JPL-Caltech
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More Posts in this Series:
"The Dawn Misson to the Asteroid Belt"

78  |  What Do We Lose When We Sacrifice Science?

By Br. Guy Consolmagno  |  27 May 2021  |  Sacred Space Astronomy

69  |  To err is human… to admit it, is science

By Br. Guy Consolmagno  |  25 Mar 2021  |  Sacred Space Astronomy

5  |  Dawn Images of Ceres now Better Than the Hubble Space Telescope

By Robert Trembley  |  28 Jan 2015

7  |  Where are all the new images of Ceres?

By Robert Trembley  |  31 Mar 2015

8  |  Dawn Spies Ceres’ North Pole

By Robert Trembley  |  17 Apr 2015

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