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.

» Age Rules

(posted October 30, 2015)

Link to article 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.
      You can also download a pdf version. pdf version   PSRD-age-rules.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  ]

» 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.

» 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.

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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.

» Target: Schrödinger Basin  -- Impact melt rocks collected from Schrödinger Basin could reveal the age of the Moon's South Pole-Aitken basin.

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Watch a video report » PSRD and planetary science, hosted by ThinkTechHawaii. (posted Oct. 26, 2015)

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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