Space

January 31, 2014

NASA-sponsored ‘disk detective’ lets public search for new planetary nurseries

NASA is inviting the public to help astronomers discover embryonic planetary systems hidden among data from the agency’s Wide-field Infrared Survey Explorer mission through a new website, DiskDetective.org.

Disk Detective is NASA’s largest crowdsourcing project whose primary goal is to produce publishable scientific results. It exemplifies a new commitment to crowdsourcing and open data by the United States government.

“Through Disk Detective, volunteers will help the astronomical community discover new planetary nurseries that will become future targets for NASA’s Hubble Space Telescope and its successor, the James Webb Space Telescope,” said James Garvin, the chief scientist for NASA Goddard’s Sciences and Exploration Directorate.

WISE was designed to survey the entire sky at infrared wavelengths. From a perch in Earth orbit, the spacecraft completed two scans of the entire sky between 2010 and 2011. It took detailed measurements on more than 745 million objects, representing the most comprehensive survey of the sky at mid-infrared wavelengths currently available.

Astronomers have used computers to search this haystack of data for planet-forming environments and narrowed the field to about a half-million sources that shine brightly in the infrared, indicating they may be “needles”: dust-rich disks that are absorbing their star’s light and reradiating it as heat.

“Planets form and grow within disks of gas, dust and icy grains that surround young stars, but many details about the process still elude us,” said Marc Kuchner, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Md. “We need more examples of planet-forming habitats to better understand how planets grow and mature.”

But galaxies, interstellar dust clouds, and asteroids also glow in the infrared, which stymies automated efforts to identify planetary habitats. There may be thousands of nascent solar systems in the WISE data, but the only way to know for sure is to inspect each source by eye, which poses a monumental challenge.

Public participation in scientific research is a type of crowdsourcing known as citizen science. It allows the public to make critical contributions to the fields of science, technology, engineering and mathematics by collecting, analyzing and sharing a wide range of data. NASA uses citizen science to engage the public in problem-solving.

Kuchner recognized the spotting of planetary nurseries as a perfect opportunity for crowdsourcing. He arranged for NASA to team up with the Zooniverse, a collaboration of scientists, software developers and educators who collectively develop and manage citizen science projects on the Internet. The result of their combined effort is Disk Detective.

Disk Detective incorporates images from WISE and other sky surveys in brief animations the website calls flip books. Volunteers view a flip book and classify the object based on simple criteria, such as whether the image is round or includes multiple objects. By collecting this information, astronomers will be able to assess which sources should be explored in greater detail, for example, to search for planets outside our solar system.

“Disk Detective’s simple and engaging interface allows volunteers from all over the world to participate in cutting-edge astronomy research that wouldn’t even be possible without their efforts,” said Laura Whyte, director of citizen science at Adler Planetarium in Chicago, Ill., a founding partner of the Zooniverse collaboration.

The project aims to find two types of developing planetary environments. The first, known as a young stellar object disk, typically is less than 5 million years old, contains large quantities of gas, and often is found in or near young star clusters. For comparison, our own solar system is 4.6 billion years old. The second planetary environment, known as a debris disk, tends to be older than 5 million years, possesses little or no gas, and contains belts of rocky or icy debris that resemble the asteroid and Kuiper belts found in our own solar system. Vega and Fomalhaut, two of the brightest stars in the sky, host debris disks.

WISE was shut down in 2011 after its primary mission was completed. But in September 2013, it was reactivated, renamed Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE), and given a new mission, which is to assist NASA’s efforts to identify the population of potentially hazardous near-Earth objects. NEOWISE also can assist in characterizing previously detected asteroids that could be considered potential targets for future exploration missions.

NASA’s Jet Propulsion Laboratory in Pasadena, Calif., manages and operates WISE for NASA’s Science Mission Directorate. The WISE mission was selected competitively under NASA’s Explorers Program managed by the agency’s Goddard Space Flight Center. The science instrument was built by the Space Dynamics Laboratory in Logan, Utah. The spacecraft was built by Ball Aerospace & Technologies Corp. in Boulder, Colo. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology, which manages JPL for NASA.
For more information about Disk Detective, visit http://www.diskdetective.org.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines December 22, 2014

News: Report: DOD bomb hunters pried into U.S. firms, citizens - During some of the bloodiest days of U.S. combat in Afghanistan and the roadside bomb threat there, the Pentagon’s Joint IED Defeat Organization “improperly collected” intelligence on U.S. citizens and corporations to try to stem the threat, a Pentagon Inspector General report has found.  ...
 
 

News Briefs December 22, 2014

U.K., Canadian military leaves to join Ebola fight Reservists and troops from Britain and Canada have left for Sierra Leone to help in the battle to contain the Ebola virus outbreak. British officials said Dec. 20 that 16 reservists and 100 regular military personnel left on a morning flight from the Brize Norton military airbase....
 
 
Boeing photograph

Boeing, Malaysia Airlines celebrate 100th 737 delivery

Boeing photograph Boeing and Malaysia Airlines celebrated the direct delivery of the airline’s 100th 737 aircraft at an event in Seattle. Shown here Aminuddin Zakaria, senior vice president, airline engineering group, Malaysi...
 

 

Navy helicopter crashes in Kuwait; all crewmembers ok

A U.S. Navy MH-60S helicopter assigned to Helicopter Sea Combat Squadron 26 (HSC 26) crashed at 11:22 a.m., EST, Dec.21, while on an overland training flight at Camp Buehring, Kuwait. All six personnel aboard the helicopter survived the crash and were transported to nearby medical facilities for evaluation. Three of the six crewmembers sustained minor...
 
 

AMC relocates KC-135 simulator

As Air Mobility Command fields the KC-46A Pegasus, displaced KC-135 Stratotanker pilot simulators will be relocated across the Total Force to maximize simulator access across the mobility enterprise. As a result, AMC, in coordination with the Air National Guard, recently identified four KC-135 pilot flight simulators and one KC-135 Boom Operator Weapons System Trainer to...
 
 

SpaceX completes first milestone for Commercial Crew Transportation System

NASA has approved the completion of SpaceX’s first milestone in the company’s path toward launching crews to the International Space Station from U.S. soil under a Commercial Crew Transportation Capability contract with the agency. During the Certification Baseline Review, SpaceX described its current design baseline including how the company plans to manufacture its Crew Dragon spacecraft...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>