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Circumplanetary disk around exoplanet PDS 70c (point-like source on the right side). A circumplanetary disk (or circumplanetary disc, short CPD) is a torus, pancake or ring-shaped accumulation of matter composed of gas, dust, planetesimals, asteroids or collision fragments in orbit around a planet.
One of the major successes of theoretical planetology is the prediction and subsequent confirmation of volcanism on Io. [1] [2]The prediction was made by Stanton J. Peale who wrote a scientific paper claiming that Io must be volcanically active that was published one week before Voyager 1 encountered Jupiter.
Standish worked on the Jet Propulsion Laboratory Development Ephemeris.. Early versions refined the accuracy of these fundamental astronomical data-sets by including many recent and accurate observational data, new types of data, using improved data processing methods, including refined equations of motion which more accurately described the actual physics of the solar system. [1]
NASA Ames Research Center, SETI Institute, NASA Lunar Science Institute, Solar System Exploration Research Virtual Institute David Morrison (born June 26, 1940) is an American astronomer , a senior scientist at the Solar System Exploration Research Virtual Institute , at NASA Ames Research Center in Mountain View, California .
Richard John Terrile (born March 22, 1951, in New York) is a Voyager scientist who discovered several moons [1] of Saturn, Uranus, and Neptune.He works for NASA's Jet Propulsion Laboratory.
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SPICE (Spacecraft Planet Instrument C-matrix Events) is a NASA ancillary information system used to compute geometric information used in planning and analyzing science observations obtained from robotic spacecraft. It is also used in planning missions and conducting numerous engineering functions needed to carry out those missions.