16 Psyche is a large M-type asteroid, which was discovered by the Italian astronomer Annibale de Gasparis, on 17 March 1852 and named after the Greek goddess Psyche. The prefix "16" signifies that it was the sixteenth minor planet in order of discovery. It is the largest and most massive of the M-type asteroids, and one of the dozen most massive asteroids. It has a mean diameter of approximately 220 kilometers (140 mi) and contains about one percent of the mass of the asteroid belt. It was thought to be the exposed core of a protoplanet, but recent observations cast doubt on that hypothesis. Psyche will be explored by NASA, with a spacecraft of the same name, marking the first time a manmade object will journey to a metallic asteroid, launched on 13 October 2023, with an expected arrival in 2029.
The Discovery Program is a series of Solar System exploration missions funded by the U.S. National Aeronautics and Space Administration (NASA) through its Planetary Missions Program Office. The cost of each mission is capped at a lower level than missions from NASA's New Frontiers or Flagship Programs. As a result, Discovery missions tend to be more focused on a specific scientific goal rather than serving a general purpose.
M-type asteroids are a spectral class of asteroids which appear to contain higher concentrations of metal phases than other asteroid classes, and are widely thought to be the source of iron meteorites.
Philip Russel Christensen is a geologist whose research interests focus on the composition, physical properties, processes, and morphology of planetary surfaces, with an emphasis on Mars and the Earth. He is currently a Regents' Professor and the Ed and Helen Korrick Professor of Geological Sciences at Arizona State University (ASU).
Dante S. Lauretta is a professor of planetary science and cosmochemistry at the University of Arizona's Lunar and Planetary Laboratory. He is the principal investigator on NASA's OSIRIS-REx mission.
Maria T. Zuber is an American geophysicist who is the vice president for research at the Massachusetts Institute of Technology, where she also holds the position of the E. A. Griswold Professor of Geophysics in the Department of Earth, Atmospheric and Planetary Sciences. Zuber has been involved in more than half a dozen NASA planetary missions aimed at mapping the Moon, Mars, Mercury, and several asteroids. She was the principal investigator for the Gravity Recovery and Interior Laboratory (GRAIL) Mission, which was managed by NASA's Jet Propulsion Laboratory.
James F. Bell III is a professor of Astronomy at Arizona State University, specializing in the study of planetary geology, geochemistry and mineralogy using data obtained from telescopes and from various spacecraft missions. Bell's active research has involved the NASA Mars Pathfinder, Near Earth Asteroid Rendezvous (NEAR), Comet Nucleus Tour (CONTOUR), 2001 Mars Odyssey, Mars Reconnaissance Orbiter, Lunar Reconnaissance Orbiter, and the Mars Science Laboratory missions. His book Postcards from Mars includes many images taken by the Mars rovers. Bell is currently an editor of the space science journal Icarus and president of The Planetary Society. He has served as the lead scientist in charge of the Panoramic camera (Pancam) color imaging system on Mars rovers Spirit and Opportunity.
Peter H. Schultz is Professor of Geological Sciences at Brown University specializing in the study of planetary geology, impact cratering on the Earth and other objects in the Solar System, and volcanic modifications of planetary surfaces. He was co-investigator to the NASA Science Mission Directorate spacecraft Deep Impact and the Lunar Crater Observation and Sensing Satellite (LCROSS). He was awarded the Barringer Medal of the Meteoritical Society in 2004 for his theoretical and experimental studies of impact craters.
Michael Julian Drake, regent's professor, was the director of the University of Arizona's Lunar and Planetary Laboratory (LPL) and head of the Department of Planetary Sciences. He was the principal investigator of the Origins Spectral Interpretation Resource Identification Security Regolith Explorer (OSIRIS-REx) mission of NASA's New Frontiers Program. The OSIRIS-REx mission, launching on September 8, 2016 and arriving at Asteroid Bennu in December 2018, was the most ambitious University of Arizona planetary science project to date and successfully retrieved a sample of the asteroid and returned it to Earth. Drake also made significant contributions to the study of HED meteorites and studied the origin of water in terrestrial planets.
Laurie Leshin is an American scientist and academic administrator serving as the 10th Director of the NASA Jet Propulsion Laboratory and as Vice President and Bren Professor of Geochemistry and Planetary Science at California Institute of Technology. Leshin's research has focused on geochemistry and space science. Leshin previously served as the 16th president of Worcester Polytechnic Institute.
Ronald Greeley was a Regents’ Professor in the School of Earth and Space Exploration (SESE) at Arizona State University (ASU), the Director of the NASA-ASU Regional Planetary Image Facility (RPIF), and Principal Investigator of the Planetary Aeolian Laboratory at NASA-Ames Research Center. He was involved with lunar and planetary studies since 1967 and most recently focused his research on understanding planetary surface processes and geologic histories.
Meenakshi Wadhwa is a planetary scientist and educator who studies the formation and evolution of the Solar System through the analysis of planetary materials including meteorites, Moon rocks and other extraterrestrial samples returned by spacecraft missions. She is director of the School of Earth and Space Exploration at Arizona State University.
VERITAS is an upcoming mission from NASA's Jet Propulsion Laboratory (JPL) to map the surface of the planet Venus in high resolution. The combination of topography, near-infrared spectroscopy, and radar image data will provide knowledge of Venus's tectonic and impact history, gravity, geochemistry, the timing and mechanisms of volcanic resurfacing, and the mantle processes responsible for them.
Psyche is a NASA Discovery Program space mission launched on October 13, 2023 to explore the origin of planetary cores by orbiting and studying the metallic asteroid 16 Psyche beginning in 2029. NASA's Jet Propulsion Laboratory (JPL) manages the project.
Faith Vilas is an American planetary scientist and Director of the MMT Observatory in Arizona.
Athena was a proposed space mission that would have performed a single flyby of asteroid 2 Pallas, the third largest asteroid in the Solar System.
David Y. Oh is an American spacecraft systems engineer and expert in electric propulsion. Dr. Oh currently works at the Jet Propulsion Laboratory (JPL) as the NASA Psyche mission chief engineer. Prior to this role he served as the Project Systems Engineering Manager for Psyche. He was also the cross-cutting phase lead and lead flight director for the NASA Mars Science Laboratory mission and was recognized in popular media for living on Mars time with his family during the month following the landing of the Curiosity rover.
Small Innovative Missions for Planetary Exploration (SIMPLEx) is a planetary exploration program operated by NASA. The program funds small, low-cost spacecraft for stand-alone planetary exploration missions. These spacecraft are intended to launch as secondary payloads on other missions and are riskier than Discovery or New Frontiers missions.
Cynthia B. Phillips is an American planetary geologist who works for NASA at the Jet Propulsion Laboratory. A focus of her research has been Europa, one of the moons of Jupiter, and she is project staff scientist and project science communications lead for the Europa Clipper spacecraft mission. An expert on processing images from space missions to the planets and their moons, and on the geological processes operating within moons, she has studied the effects of asteroid impacts on the surface of Europa, and definitions of non-earth-based life that could apply on places like Europa that are outside the circumstellar habitable zone.
