Jim Sharkey
February 19th, 2017
This enhanced color composite image, made with data from the framing camera aboard NASAs Dawn spacecraft, shows the area around Ernutet Crater. The bright red portions appear redder with respect to the rest of Ceres. Image & Caption Credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA
NASAs Dawn spacecraft has detected evidence of organic materials on Ceres, a dwarf planet that is the largest object in the main asteroid belt between Mars and Jupiter. Researchers using Dawns visible and infrared mapping spectrometer (VIR) discover the material in and around a crater in Ceres northern hemisphere named Ernutet. Organic materials are of interest to scientists because they are necessary, but not sufficient, components of life on Earth.
Ernutet Crater measures about 32 miles (52 km) in diameter and is located in the northern hemisphere of Ceres. Image & Caption Credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA
Organic materials have previously been found inside certain meteorites and inferred from telescopic observations of certain asteroids. Ceres shares many attributes in common with meteorites rich in water and organics; in particular, a group of meteorites called carbonaceous chondrites. The discovery of organics on Ceres strengthens the connection between the dwarf planet, these meteorites, and their parent bodies.
This is the first clear detection of organic molecules from orbit on a main belt body, said Maria Cristina De Sanctis, lead author of the study, based at the National Institute of Astrophysics, Rome.The discovery is reported in the journal Science.
Data presented in the new study supports the idea that organic materials are native to Ceres. Carbonates and clays previously found on Ceres provide evidence for chemical activity in the presence of water and heat. It is possible that the organics were similarly produced in a warm, water-rich environment.
The discovery of organics on Ceres adds to the ingredients found on the dwarf planet that areassociated with life in the past. Previous studies have foundhydrated minerals, carbonates, water ice, and ammoniated clays that must have been altered by water. Salts and sodium carbonate, such asthose foundin the bright areas of Occator Crater, are also thought to have been carried to the surface by liquid.
This discovery adds to our understanding of the possible origins of water and organics on Earth, said Julie Castillo-Rogez, Dawn project scientist based at NASAs Jet Propulsion Laboratory in Pasadena, California.
This enhanced color composite image from Dawns visible and infrared mapping spectrometer shows the area around Ernutet Crater on Ceres. Image & Caption Credit: NASA / JPL-Caltech / UCLA / ASI / INAF
The organic materials on Ceres are primarily located in an area covering approximately 400 square miles (about 1,000 square kilometers). A very strong signal of organics is visible on the floor of Ernutet Crater, on its southern rim and in an area to the southwest, just outside of the crater. There are smaller organics-rich areas several miles (11 kilometers) west and east of the crater. Organics were also located in a small portion of Inamahari Crater, approximately 250 miles (400 kilometers) from Ernutet.
DawnsVIR instrument was able to detect the organic material because of its special signature in near-infrared light. In enhanced, visible-light images taken by Dawns framing camera, the organic material associated with areas that appear redder than the rest of Ceres. The unique nature of these regions stands out even in low- resolution images from the VIR instrument.
Were still working on understanding the geological context for these materials, said study co-author Carle Pieters, professor of geological sciences at Brown University, Providence, Rhode Island.
After completing nearly two years of observations at Ceres, Dawn is now in an extremely elliptical orbit of the dwarf planet, going for an altitude of 4,670 miles (7,529 kilometers) up to nearly 5,810 miles (9,350 kilometers). On February 23, Dawn will raise its orbit to approximately 12,400 miles (20,000 kilometers), about the same height as GPS satellites above Earth.
The spacecraft will also shift into a different orbital plane, allowing Dawn to study Ceres in a new geometry. In late spring, Dawn will view Ceres with the Sun directly behind the spacecraft, so that Ceres will appear brighter than before, possibly revealing more clues about its nature.
Tagged: Ceres Dawn NASA The Range
Jim Sharkey is a lab assistant, writer and general science enthusiast who grew up in Enid, Oklahoma, the hometown of Skylab and Shuttle astronaut Owen K. Garriott. As a young Star Trek fan he participated in the letter-writing campaign which resulted in the space shuttle prototype being named Enterprise. While his academic studies have ranged from psychology and archaeology to biology, he has never lost his passion for space exploration. Jim began blogging about science, science fiction and futurism in 2004. Jim resides in the San Francisco Bay area and has attended NASA Socials for the Mars Science Laboratory Curiosity rover landing and the NASA LADEE lunar orbiter launch.
Read the original post:
Dawn spacecraft finds evidence of organic materials on Ceres - SpaceFlight Insider
- Armadillo’s Level 2 LLC attempt coming soon? - November 8th, 2009 [November 8th, 2009]
- Decisions, decisions - November 8th, 2009 [November 8th, 2009]
- Armadillo versus the weather - November 8th, 2009 [November 8th, 2009]
- Photos from Armadillo’s Saturday flights - November 8th, 2009 [November 8th, 2009]
- Armadillo Level 2 Flight 1 - November 8th, 2009 [November 8th, 2009]
- Meanwhile, elsewhere in the LLC race - November 8th, 2009 [November 8th, 2009]
- Masten gets halfway there - November 8th, 2009 [November 8th, 2009]
- Xombie photos (finally!) - November 8th, 2009 [November 8th, 2009]
- Is the media clowning around? - November 8th, 2009 [November 8th, 2009]
- Galactic Suite “on schedule”? - November 8th, 2009 [November 8th, 2009]
- Scientist Guest Column: Using Commercial Suborbital Spacecraft for Microgravity Chemistry Research - November 8th, 2009 [November 8th, 2009]
- Building Spaceport Infrastructure: An Overview of the STIM-Grants Program - November 8th, 2009 [November 8th, 2009]
- Five Years After SpaceShipOne’s Historic X PRIZE Flight, New Challenges Await - November 8th, 2009 [November 8th, 2009]
- Masten Space Systems Makes Successful Flights to Qualify for $150K NASA Lunar Lander Prize Level 1 - November 8th, 2009 [November 8th, 2009]
- Distinguished Former NASA Astronauts Endorse Commercial Spaceflight in Wall Street Journal Op-Ed - November 8th, 2009 [November 8th, 2009]
- NASA Chief Praises Commercial Spaceflight, Suborbital Science, & Innovation Prizes in Speech - November 8th, 2009 [November 8th, 2009]
- CSF Welcomes Strong Support for Commercial Human Spaceflight in White House Panel’s Report - November 8th, 2009 [November 8th, 2009]
- Commercial Spaceflight Federation President Bretton Alexander Appointed to the NASA Advisory Council - November 8th, 2009 [November 8th, 2009]
- In November 5th Public Ceremony, NASA to Award $1.65 Million In Prizes for Commercial Spaceflight Successes - November 8th, 2009 [November 8th, 2009]
- CSF Congratulates Winners of NASA’s $2 Million Lunar Lander Challenge - November 8th, 2009 [November 8th, 2009]
- Welcome to the NewSpace Journal - December 13th, 2009 [December 13th, 2009]
- Some things even Virgin can’t control - December 13th, 2009 [December 13th, 2009]
- While you’re waiting for the rollout… - December 13th, 2009 [December 13th, 2009]
- SpaceShipTwo rollout: initial impressions - December 13th, 2009 [December 13th, 2009]
- A couple of pics - December 13th, 2009 [December 13th, 2009]
- SpaceShipTwo slideshow - December 13th, 2009 [December 13th, 2009]
- The Virgin party’s aftermath - December 13th, 2009 [December 13th, 2009]
- Investment in Commercial Spaceflight Grows to $1.46 Billion, Updated Industry Study Reveals - December 13th, 2009 [December 13th, 2009]
- Former Astronaut-Astronomer, Sam Durrance, Joins the CSF Suborbital Researchers Group - December 13th, 2009 [December 13th, 2009]
- Commercial Spaceflight Federation Announces Creation and Initial Membership of Spaceports Council - December 13th, 2009 [December 13th, 2009]
- CSF President Bretton Alexander Testifies Before House Science Committee on Spaceflight Safety - December 13th, 2009 [December 13th, 2009]
- CSF Vice-Chairman Jeff Greason Testifies Before House Transportation and Infrastructure Committee on Commercial Spaceflight Regulation - December 13th, 2009 [December 13th, 2009]
- Virgin Galactic Unveils SpaceShipTwo - December 13th, 2009 [December 13th, 2009]
- So that’s why Aabar invested in Virgin? - December 15th, 2009 [December 15th, 2009]
- More about the Virgin rollout aftermath - December 17th, 2009 [December 17th, 2009]
- Space tourism as “the final undiscovered frontier”? - December 17th, 2009 [December 17th, 2009]
- Orion Propulsion acquired - December 17th, 2009 [December 17th, 2009]
- Spaceport America developments - December 18th, 2009 [December 18th, 2009]
- XCOR wins a major customer - December 19th, 2009 [December 19th, 2009]
- Centennial Challenges, Spaceport Infrastructure Grants, and Suborbital Science to Receive Funds from NASA and FAA - December 22nd, 2009 [December 22nd, 2009]
- Video tour of Spaceport America - December 24th, 2009 [December 24th, 2009]
- Virgin’s web traffic planning - December 24th, 2009 [December 24th, 2009]
- List of Speakers Announced for the Next-Generation Suborbital Researchers Conference in February - December 31st, 2009 [December 31st, 2009]
- Popular Science Features Commercial Spaceflight on January Cover, Discusses NASA Partnerships - January 4th, 2010 [January 4th, 2010]
- Aviation Week honors the “Space Entrepreneur” - January 5th, 2010 [January 5th, 2010]
- “The Space Entrepreneur” Named by Aviation Week Magazine As Its 2009 Person of the Year - January 5th, 2010 [January 5th, 2010]
- Additional notes about Olsen’s book - January 6th, 2010 [January 6th, 2010]
- Registration deadline approaching for suborbital science conference - January 8th, 2010 [January 8th, 2010]
- NASA Deputy Administrator Lori Garver to Keynote the Next-Generation Suborbital Researchers Conference in February - January 11th, 2010 [January 11th, 2010]
- Cecil Field gets spaceport license – but will anyone use it? - January 12th, 2010 [January 12th, 2010]
- Training begins for suborbital scientist-astronauts - January 12th, 2010 [January 12th, 2010]
- First Class of Suborbital Scientist-Astronauts Successfully Complete NASTAR Training Program - January 14th, 2010 [January 14th, 2010]
- Is “space tour guide” in your professional future? - January 17th, 2010 [January 17th, 2010]
- What can Florida, Indiana, and others learn from Oklahoma? - January 17th, 2010 [January 17th, 2010]
- Virginia wants money, New Mexico wants laws - January 21st, 2010 [January 21st, 2010]
- Commercial Spaceflight Federation Responds to the Aerospace Safety Advisory Panel’s 2009 Annual Report - January 21st, 2010 [January 21st, 2010]
- CSF Statement on NASA’s Anticipated Announcement of a $6 Billion Commercial Crew Program and NASA Budget Increase - January 29th, 2010 [January 29th, 2010]
- CSF Welcomes New NASA Human Spaceflight Plan, Congratulates Commercial Crew Development Winners - February 1st, 2010 [February 1st, 2010]
- NASA Unveils Commercial Human Spaceflight Development Agreements and Announces $50 Million in Seed Funding for Commercial Crew - February 3rd, 2010 [February 3rd, 2010]
- James Cameron Endorses Commercial Spaceflight, New NASA Plan - February 4th, 2010 [February 4th, 2010]
- Newt Gingrich and Bob Walker Endorse Obama’s New NASA Plan, Urge Bipartisan Support - February 13th, 2010 [February 13th, 2010]
- Blue Origin proposes orbital vehicle - February 18th, 2010 [February 18th, 2010]
- CSF Announces New Research and Education Affiliates Program, Initial Participating Universities - February 18th, 2010 [February 18th, 2010]
- CSF Welcomes Historic NASA Commitment of $75 Million for Commercial Suborbital Flights, Payloads - February 18th, 2010 [February 18th, 2010]
- Suborbital vehicle development updates - February 19th, 2010 [February 19th, 2010]
- Other conference announcements - February 21st, 2010 [February 21st, 2010]
- Bigger prizes to come? - February 23rd, 2010 [February 23rd, 2010]
- Gov. Bill Richardson Endorses Commercial Spaceflight, Obama’s New NASA Plan - February 23rd, 2010 [February 23rd, 2010]
- Over 250 People Attend Next-Gen Suborbital Researchers Conference, 2011 Meeting Planned for Florida - February 24th, 2010 [February 24th, 2010]
- Boston Globe, Nature, New York Times Editorial Boards Among Others Welcoming New NASA Plan - February 25th, 2010 [February 25th, 2010]
- Commercial Spaceflight Federation Commends New Mexico for Passage of Key Liability Legislation - March 2nd, 2010 [March 2nd, 2010]
- Burt Rutan’s BigThink - March 3rd, 2010 [March 3rd, 2010]
- Brief notes: Soyuz, Virgin, and… iCarly? - March 5th, 2010 [March 5th, 2010]
- Commercial Spaceflight Federation 2009 Annual Report Highlights Industry Progress - March 8th, 2010 [March 8th, 2010]
- SpaceShipTwo flies, on schedule - March 23rd, 2010 [March 23rd, 2010]
- SpaceShipTwo captive carry flight video - March 23rd, 2010 [March 23rd, 2010]
- Over the Mojave Desert, Suborbital Vehicles Take Flight - March 28th, 2010 [March 28th, 2010]
- See WK2 and SS2 fly in New Mexico this October - March 29th, 2010 [March 29th, 2010]
- SA10: Commercial RLV Technology Roadmap update - April 9th, 2010 [April 9th, 2010]
- An evolving Armadillo - April 11th, 2010 [April 11th, 2010]