Planetary Science Research Discoveries

Planetary scientists sharing ideas and discoveries.

Planetary Science Research Discoveries (PSRD) is an educational site sharing the latest research by NASA-sponsored scientists on meteorites, asteroids, planets, moons, and other materials in our Solar System. The website is supported by the Cosmochemistry Program of NASA's Science Mission Directorate and by Hawai'i Space Grant Consortium and is a vital link for planetary and space sciences, and for learning how science works.

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Click the story title to read this month's headline article. Scroll down to see the six latest headline articles. Click the archive button for access to all 180+ articles in our collection.

» Chondritic Asteroids–When Did Aqueous Alteration Happen?

(posted June 29, 2015)

. New dates determined for aqueous alteration on chondritic parent bodies, based on a new mineral standard, have big implications on the timing and location of accretion.
      You can also download a pdf version. pdf version   PSRD-Mn-Cr-fayalites.pdf

Six most recent Headline articles. Or go to the Archive, where you have access to all 180+ articles in our collection.

6 MOST RECENT HEADLINE ARTICLES.           [  V I E W     A L L  ]

» Tungsten Isotopes, Formation of the Moon, and Lopsided Addition to Earth and Moon
A distinct difference in tungsten isotopic composition between the Moon and Earth is consistent with the Moon and Earth starting with the same isotopic composition, but then modified by late accretion of different amounts of chondritic asteroids..

» Ancient Jets of Fiery Rain
A new idea suggests that chondrules could have formed as the result of impact jetting caused when large planetesimals collided during planet formation.

» Water in Asteroid 4 Vesta
The big, melted asteroid 4 Vesta provides clues to the source of water to Earth and Mars.

» Moon's Pink Mineral
Remote sensing detections of pink spinel anorthosite are compared with sample analyses and experimental results to learn more about the lunar crust.

» The Importance of When
Isotopic analyses at the microscopic scale indicate an ancient age for an impact mixture from Mars and appear to confirm a young age for a group of basaltic lava flows.

» ICP-MS and Planetary Geosciences
ICP-MS techniques provide acurrate and rapid elemental analyses.

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  Reports
CosmoSparks--quick views of big advances. Click here for access to all reports in the series.

In this series of reports PSRD gives quick views of big advances in cosmochemistry, with links to further details.

» Modeling Water Adsorption on Olivine Crystals in the Solar Nebula   -- Modeling results suggest a pathway for the formation of phyllosilicates, which could have been accreted into Earth.

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PSRDpresents slide sets with notes
This section of PSRD contains annotated slide sets that are associated with our headline articles. We hope you find the slides useful for your own talks and presentations.

Instruments of Cosmochemistry
In this series of articles PSRD highlights the essential tools and amazing technology used by talented scientists seeking to unravel how the solar system formed.

General Resources
This section of PSRD contains links to general information about meteorites, planetary science, and classroom activities.




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