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 175+ articles in our collection.

» The Importance of When

(posted June 23, 2014)

Mars, 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.
      You can also download a pdf version. pdf version   PSRD-Mars-meteorite-ages.pdf

Six most recent Headline articles. Or go to the Archive, where you have access to all 175+ articles in our collection.

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

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

» Discovery of a New Garnet Mineral, Hutcheonite, in the Allende Meteorite
A new titanium-rich garnet mineral discovered in a CAI in Allende is named in honor of Ian D. Hutcheon.

» Magnesium-rich Basalts on Mercury
Crystallization modeling using the MELTS computer code with MESSENGER-derived compositions finds Mg-rich lavas on Mercury.

» Meteoritic Minerals Tell a Story of Multistage Cooling, Break-up, and Reassembly of an Asteroid
Compositional variations in minerals in H-chondrites indicate at least two vastly different cooling rates at different temperatures, suggesting fragmentation, cooling of the fragments, and reassembly into a second-generation rubble pile.

» New Martian Meteorite is Similar to Typical Martian Crust
A newly-identified Martian meteorite from Northwest Africa is not like other Martian meteorites, but has a chemical composition similar to the average Martian crust.

» Zinc Isotopes Provide Clues to Volatile Loss During Moon Formation
Ratios of zinc isotopes indicate evaporation of zinc (and other volatiles) during formation of the Moon.



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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.

» Invoking a Hit-and-Run Collisional Origin for Planet Mercury  -- Grazing collisions between proto-Mercury and a larger body can explain Mercury's massive metallic core and thin rocky mantle.

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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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