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.

» Chondrules: Important, but Possibly Unfathomable

(posted April 17, 2017)

Link to article: Chondrules. Studies of chondrules in meteorites have revealed much about them, except how they formed and if they played a role in forming planets.
      You can also download a pdf version. pdf version   PSRD-chondrules.pdf

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

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

» Searching for Ancient Solar System Materials on the Moon, Earth, and Mars
The early history of the Solar System is recorded by meteorites falling now, but also by those that fell hundreds of millions to billions of years ago, preserved in lunar samples, sedimentary layers on Earth, and even sitting on the surface of Mars.

» What Made the Doughnuts Inside Lunar Concentric Craters?
Concentric ridges inside small lunar craters may have formed when intrusion of magma caused uplift of the crater floor.

» 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.

» 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.


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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 planetary sciences, with links to further details.

» Life Span of the Solar Nebula  -- Researchers mark the end of the solar nebula by studying remanent magnetism preserved in angrite meteorites.

» Geochimica et Cosmochimica Acta—Special Issue on Isotopic Studies of Planetary and Nuclear Materials   -- A scientific tribute to Ian Douglass Hutcheon.

» Ceres Has Organics  -- Scientists make the first unambiguous detection of organic compounds on a main asteroid belt body from Dawn orbital data.

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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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2017
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