Planetary scientists sharing ideas and discoveries.
Planetary Science and Resources Discoveries (PSRD) is an educational site sharing the latest research on the nature and origin of the Moon, meteorites, asteroids, planets, and other materials in our Solar System, and on identifying potential resources on those bodies that could be tapped for the benefit of people on Earth. Original support came from the Planetary Science Division of NASA's Science Mission Directorate and Hawai'i Space Grant Consortium. This site is a vital link for what's new in planetary and space sciences, space resources exploration, and learning how science works.
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14 JUNE 2018 | Meteorite Evidence for a Complicated Protoplanetary Disk
by G. Jeffrey Taylor A striking dichotomy in isotopic compositions of meteorite groups appears to be consistent with Jupiter and Saturn migrating to and fro during planet formation. |
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30 AUG 2017 | Meteorite Formation Times and the Age of Jupiter
by G. Jeffrey Taylor Isotopic analyses of meteorites and models of planetary accretion indicate that Jupiter's solid core had accreted only one million years after the Solar System began to form. |
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MARCH 2016 | Explaining CO2 Inside the Snowline by Linda M. V. Martel Laboratory experiments determine CO2 adsorption onto carbonaceous chondrite meteorites with implications for the presence of CO2 in the non-ice materials on the satellites of Jupiter. |
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31 MAR 10 | Dynamics and Chemistry of Planet Construction by G. Jeffrey Taylor Outward migration of Saturn might have triggered a dramatic increase in the bombardment rate on the Moon 3.9 billion years ago, an idea testable with lunar samples. |
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24 AUG 06 | Wandering Gas Giants and Lunar Bombardment by G. Jeffrey Taylor Outward migration of Saturn might have triggered a dramatic increase in the bombardment rate on the Moon 3.9 billion years ago, an idea testable with lunar samples. |
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25 NOV 02 | Bands on Europa by Linda M. V. Martel Rifting at Earth's mid-ocean ridges is a good analogy for Europan band formation. |
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21 AUG 01 | Uranus, Neptune, and the Mountains of the Moon by G. Jeffrey Taylor The tardy formation of Uranus and Neptune might have caused the intense bombardment of the Moon 3.9 billion years ago. |
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26 FEB 01 | The Europa Scene in the Voyager-Galileo Era by Linda M. V. Martel Voyager and Galileo images provide a 20-year perspective on the geology of Europa's water-ice surface. |
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15 FEB 00 | Jupiter's Hot, Mushy Moon by G. Jeffrey Taylor Very high lava flow temperatures on Io lead some scientists to propose that the satellite's interior is a swirling cauldron of partially molten rock. |
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24 SEPT 98 | Europa's Salty Surface by G. Jeffrey Taylor Jupiter's moon Europa has salt deposits on its surface that may be the products of evaporation of water erupted from an ocean beneath the satellite's icy crust. |
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27 APR 98 | Big Mountain, Big Landslide on Jupiter's Moon, Io by Linda M. V. Martel Thrust faulting and uplift of a large block of Io's crust may have created a mountain and the landslide on it. |
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