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Experts on Comets

A comet is an icy small Solar System body that, when passing close to theSun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles. The coma and tail are much larger and, if sufficiently bright, may be seen from the Earth without the aid of a telescope. Comets have been observed and recorded since ancient times by many cultures.

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Name Missions & Mission Experience Targets Techniques Major Facilities & Instrument Development
susank's picture
Susan Benecchi 		HST, New Horizons Charon, Comets, Dwarf planets, Kuiper Belt, Pluto, Trans-Neptunian objects Astrometry, Education/Public Outreach (EPO), Ground-based observing, Photometry, Space-based observing Cerro Tololo, Gemini, IRTF, Kitt Peak
rclark's picture
Roger Clark 		Cassini, Chandrayaan 1 (India), Europa Clipper, Galileo, Mars Global Surveyor, Mars Observer, MRO ** Instrument Co-Investigator, Mission Co-Investigator Asteroids, Ceres, Comets, Dwarf planets, Earth, Exoplanets, Icy satellites, Interplanetary Dust, Io, Jupiter, Kuiper Belt, Mars, Mercury, Moon, Neptune, Planetary rings, Pluto, Saturn, Small satellites, Titan, Uranus, Venus, Vesta Geology, Ground-based observing, Mapping, Mineralogy, Numerical modeling, Photometry, Remote sensing, Space-based observing, Spectroscopy
jpcombe's picture
Jean-Philippe Combe 		Cassini, Chandrayaan 1 (India), Dawn, Mars Express (ESA), Rosetta ** Calibration/Test planning, Mission Co-Investigator, Mission science team Asteroids, Ceres, Comets, Earth, Enceladus, Europa, Icy satellites, Mars, Moon, Phobos, Planetary rings, Titan, Vesta Education/Public Outreach (EPO), Field Work, Laboratory Spectroscopy, Mapping, Mineralogy, Numerical modeling, Photometry, Remote sensing, Space-based observing, Spectroscopy Cameras, FTIR, Imaging spectrometers, Spectrometers, Thermal radiometers
rgaskell's picture
Robert Gaskell 		Cassini, Dawn, MESSENGER, OSIRIS-REx, Rosetta, Voyager Asteroids, Comets, Earth, Icy satellites, Io, Mars, Mercury, Moon, Small satellites, Vesta Shape modeling
graps's picture
Amara Graps 		Cassini, Dawn, Galileo, IRAS, New Horizons, Rosetta, Ulysses, Voyager ** Calibration/Test planning, Data archive, Data validation, Instrument operations, Mission science team, Requirements generation and flow down, Science operations Asteroids, Ceres, Comets, Dwarf planets, Enceladus, Icy satellites, Interplanetary Dust, Io, Io torus, Jupiter, Meteorites, Moon, Planetary rings, Saturn, Small satellites, Solar particles/Solar wind, Uranus, Vesta Astrobiology, Education/Public Outreach (EPO), Ground-based observing, Magnetospherics, Numerical modeling, Photometry, Remote sensing, Shape modeling, Space-based observing, Volcanism IRTF, Palomar ** Cameras, Dust counter
hartmann's picture
Bill Hartmann 		Mariner 9, Mars Express (ESA), Mars Global Surveyor Asteroids, Comets, Earth, Mars, Meteorites, Moon, Small satellites Crater Counting, Education/Public Outreach (EPO), Ground-based observing, Volcanism
hhsieh's picture
Henry Hsieh 		Asteroids, Comets, Interplanetary Dust, Small satellites Astrobiology, Education/Public Outreach (EPO), Ground-based observing, Numerical modeling, Photometry, Space-based observing, Spectroscopy
jyli's picture
Jian-Yang Li 		Chang'E 2 (China), Dawn, Deep Impact, EPOXI, HST, OSIRIS-REx, Stardust-NExT ** Calibration/Test planning, Data archive, Data validation, Mission science team, Science operations Asteroids, Ceres, Comets, Dwarf planets, Interplanetary Dust, Small satellites, Vesta Ground-based observing, Mapping, Photometry, Remote sensing, Space-based observing, Thermal modeling ALMA, Gemini, Palomar
elilly's picture
Eva Lilly 		Asteroids, Comets, Kuiper Belt Astrometry, Education/Public Outreach (EPO), Photometry Gemini, Keck Observatory, Pan-STARRS
tmccord's picture
Tom McCord 		Apollo, Cassini, Chandrayaan 1 (India), Dawn, Europa Clipper, Galileo, Mariner 9, Mars Express (ESA), Rosetta ** Calibration/Test planning, Data archive, Data validation, Instrument Co-Investigator, Instrument PI, Mission science team, Optical design, Requirements generation and flow down, Science operations Asteroids, Callisto, Ceres, Comets, Earth, Enceladus, Europa, Ganymede, Iapetus, Icy satellites, Mars, Mercury, Meteorites, Moon, Small satellites, Titan, Vesta Geochemistry, Geology, Laboratory Spectroscopy, Mineralogy, Remote sensing, Spectroscopy, Thermal modeling Cerro Tololo, IRTF, Kitt Peak, Palomar ** Cameras, FTIR, Imaging spectrometers, Spectrometers
jmolaro's picture
Jamie Molaro 		OSIRIS-REx Asteroids, Ceres, Comets, Enceladus, Europa, Icy satellites, Moon Education/Public Outreach (EPO), Field Work, Geomorphology, Numerical modeling, Thermal modeling
jpmorgen's picture
Jeff Morgenthaler 		GALEX, Sounding Rockets Comets, Earth, Europa, Gas giants, Io, Io torus, Jupiter, Solar particles/Solar wind Aeronomy, Astrometry, Atmospheres, Calorimetry, Ground-based observing, Photometry, Space-based observing, Spectroscopy, X-ray spectroscopy Kitt Peak ** Imaging spectrometers, Spectrometers, X-ray spectrometers
mueller's picture
Beatrice Mueller 		Asteroids, Comets, Trans-Neptunian objects Education/Public Outreach (EPO), Ground-based observing, Photometry Cerro Tololo, Kitt Peak
rnelson's picture
Robert Nelson 		Cassini, Voyager Asteroids, Comets, Dwarf planets, Exoplanets, Icy satellites, Io, Mercury, Moon, Small satellites, Titan Photometry, Remote sensing, Spectroscopy
obrien's picture
David O'Brien 		Dawn Asteroids, Ceres, Comets, Dwarf planets, Exoplanets, Icy satellites, Small satellites, Vesta Astrobiology, Numerical modeling, Remote sensing
prettyman's picture
Thomas Prettyman 		Dawn, Lunar Prospector, Mars Odyssey, Psyche ** Calibration/Test planning, Data archive, Data validation, Electronics design, Flight Software, Instrument operations, Instrument PI, Mission Co-Investigator, Mission operations, Mission science team, Requirements generation and flow down Asteroids, Ceres, Comets, Dwarf planets, Earth, Mars, Meteorites, Moon, Small satellites, Vesta 3D Printing, Education/Public Outreach (EPO), Field Work, Gamma-ray spectroscopy, Geochemistry, Geology, Mapping, Neutron detectors, Neutron spectroscopy, Numerical modeling, Remote sensing, Shape modeling Gamma-ray detectors, Neutron detectors
jerichardsonjr's picture
James Richardson Jr. 		Deep Impact, EPOXI ** Mission science team Asteroids, Comets, Icy satellites, Moon Geomorphology, Impacts, Numerical modeling, Radar Arecibo
nalin's picture
Nalin Samarasinha 		Asteroids, Comets, Kuiper Belt Education/Public Outreach (EPO), Ground-based observing, Numerical modeling, Remote sensing Cerro Tololo, Kitt Peak
srs's picture
Stephen Schwartz 		Hayabusa2 (Japan), OSIRIS-REx ** Instrument Co-Investigator, Mission Co-Investigator, Mission science team Asteroids, Comets, Deimos, Icy satellites, Interplanetary Dust, Kuiper Belt, Phobos, Planetary rings, Trans-Neptunian objects Celestial Mechanics, Education/Public Outreach (EPO), Impacts, Numerical modeling, Photometry
ssonnett's picture
Sarah Sonnett 		NEOWISE Asteroids, Comets, Dwarf planets, Trans-Neptunian objects Astrobiology, Astrometry, Education/Public Outreach (EPO), Ground-based observing, Numerical modeling, Photometry, Shape modeling, Space-based observing, Spectroscopy, Thermal Emission Spectroscopy Kitt Peak ** Cameras
jsteckloff's picture
Jordan Steckloff 		Cassini, EPOXI, Stardust-NExT Asteroids, Ceres, Charon, Comets, Dwarf planets, Icy satellites, Kuiper Belt, Mercury, Moon, Pluto, Small satellites, Titan, Trans-Neptunian objects, Vesta Celestial Mechanics, Education/Public Outreach (EPO), Numerical modeling, Thermal modeling
sykes's picture
Mark Sykes 		Dawn, HST, IRAS, ISO (ESA), MSX, NEOWISE, Spitzer ** Data archive, Mission Co-Investigator, Mission science team, Science operations Asteroids, Ceres, Charon, Comets, Deimos, Dwarf planets, Interplanetary Dust, Mars, Mercury, Moon, Phobos, Pluto, Small satellites, Vesta Ground-based observing, Photometry, Radiometry, Remote sensing, Space-based observing ALMA, IRTF, Kitt Peak, MMT, SMT
kvolk's picture
Kathryn Volk 		Asteroids, Comets, Exoplanets, Kuiper Belt, Trans-Neptunian objects Celestial Mechanics, Ground-based observing Kitt Peak, LBT
sjw's picture
Stu Weidenschilling 		Asteroids, Comets, Exoplanets, Meteorites, Small satellites, Trans-Neptunian objects High-Throughput Computing (HTC), Numerical modeling
pweissman's picture
Paul Weissman 		Galileo, Rosetta Asteroids, Comets, Kuiper Belt, Small satellites Education/Public Outreach (EPO), Ground-based observing, Numerical modeling, Photometry, Remote sensing, Space-based observing
zouxd's picture
Xiao-Duan Zou 		Chang'E 1 (China), Chang'E 2 (China), Chang'E 3 (China), OSIRIS-REx ** Calibration/Test planning, Data archive, Data validation, Mission science team, Science operations Asteroids, Comets, Moon Crater Counting, Education/Public Outreach (EPO), Geology, Geomorphology, Impacts, Mapping, Photometry, Remote sensing, Shape modeling, Spectroscopy Cameras, Imaging spectrometers, Spectrometers
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