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 Planetary Science Division 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 the article. The archive holds all articles in our collection.

» Rock and Roll at the Apollo 17 Site

(posted June 29, 2016)

Link to article Rock and Roll at the Apollo 17 Site. The latest orbital images and topographic data offer new insights to the geologic context of Apollo 17 impact melt breccias.
      You can also download a pdf version. pdf version   PSRD-ImpactMeltBreccias-Apollo17.pdf

Six recent Headline articles. The archive holds all articles in our collection.

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

» A Sample from an Ancient Sea of Impact Melt
A lunar breccia from the Apollo 16 site contains a fragment formed in a sea of impact melt 4.2 billion years ago.

» Primordial Molecular Cloud Material in Metal-Rich Carbonaceous Chondrites
Dust from the molecular cloud that gave birth to the Sun may be preserved in objects formed in the outer reaches of the Solar System.

» Primeval Water in the Earth
Hydrogen isotopes in lavas derived from the deep mantle suggest the presence of a component inside the Earth that came directly from the primordial solar nebula.

» Age Rules
Rules for determining the most reliable ages for Moon rocks shed light on what rocks formed when during construction of the ancient lunar highlands crust.

» Making and Differentiating Planets
A detailed study forming Earth and differentiating it into core and mantle shows that it accreted heterogeneously and most water is added after 60% of the Earth had formed.

» Chondritic Asteroids–When Did Aqueous Alteration Happen?
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.


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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.

» Remnants of Earth's Construction  -- Tungsten isotopic data from modern flood basalts show that regions of Earth's mantle have remained chemically isolated since they formed during accretion of the planet.

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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 great information about meteorites, planetary science, and classroom activities.




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