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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 .
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]
William Kenneth Hartmann (born June 6, 1939) is an American planetary scientist, artist, author, and writer.He was the first to convince the scientific mainstream that the Earth had once been hit by a planet sized body (), creating both the Moon and the Earth's 23.5° tilt.
Comprehensive overview of the Solar System. The Sun, planets, dwarf planets and moons are at scale for their relative sizes, not for distances. A separate distance scale is at the bottom. Moons are listed near their planets by proximity of their orbits; only the largest moons are shown. Only the largest moons are shown. Date: 29 May 2018 ...
The oldest stars contain few metals, whereas stars born later have more. This higher metallicity is thought to have been crucial to the Sun's development of a planetary system because the planets formed from the accretion of "metals". [82] The region of space dominated by the Solar magnetosphere is the heliosphere, which spans much of the Solar ...
The Planetary Data System (PDS) is a distributed data system that NASA uses to archive data collected by Solar System missions. The PDS is an active archive that makes available well documented, peer reviewed planetary data to the research community. [ 1 ]
David H. Grinspoon (born 1959) is an American astrobiologist.He is the Senior Scientist for Astrobiology Strategy at NASA [1] and was the former inaugural Baruch S. Blumberg NASA/Library of Congress Chair in Astrobiology for 2012–2013.
A small orrery showing Earth and the inner planets. An orrery is a mechanical model of the Solar System that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; however, since accurate scaling is often not ...