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.
Supported by NASA's SMD Cosmochemistry Program and Hawai'i Space Grant Consortium.
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Archive of Space Weathering Articles
Articles listed by publication date.
DATE POSTED |
HEADLINE ARTICLES |
PDF VERSIONS |
| 31 AUG 2011 | Samples from Asteroid Itokawa
by G. Jeffrey Taylor and Linda M. V. Martel Samples returned from asteroid Itokawa by the Hayabusa mission provide ground truth for astronomical observations and reveal that the little asteroid is eroding at a rate of tens of centimeters per million years. |
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| FEB 2011 | Asteroid Itokawa Samples
by Linda M. V. Martel CosmoSparks Report - Hayabusa Mission results show definitive evidence for LL chondrite compositions of minerals in Itokawa Samples. |
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| 10 AUG 09 | Space Weathering Agent: Solar Wind
by Linda M. V. Martel Bombardment of helium ions on olivine in the laboratory simulates space weathering of asteroids and other airless bodies. |
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| 29 APRIL 08 | A Farside Geochemical Window into the Moon
by Linda M. V. Martel Findings show geochemical enhancements in the Dewar region are caused by thorium-rich mare basalt fragments in the regolith. |
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| 8 NOV 06 | Recent Gas Escape from the Moon
by G. Jeffrey Taylor Gases may have escaped from the Moon as recently as a million years ago, implying that the lunar interior is not as lethargic as conventional wisdom dictates. |
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| 10 DEC 04 | Composition of the Moon's Crust
by Linda M. V. Martel New empirical calibrations of Lunar Prospector and Clementine data yield improved global maps of Th, K, and FeO. |
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| 28 SEPT 04 | Lunar Crater Rays Point to a New Lunar Time Scale
by Linda M. V. Martel Optical maturity maps of rays, derived from Clementine multispectral data and calibrated with lunar sample analyses, provide a new way to define the two youngest time stratigraphic units on the Moon. |
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| 5 JULY 04 | New Mineral Proves an Old Idea about Space Weathering
by Linda M. V. Martel A newly discovered vapor-deposited iron silicide in a lunar meteorite has been named hapkeite. |
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| 26 FEB 02 | The Composition of Asteroid 433 Eros by G. Jeffrey Taylor X-rays and reflected light suggest that asteroid 433 Eros is similar in composition to the most common type of meteorite--maybe. |
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| 22 OCT 01 | New Data, New Ideas, and Lively Debate about Mercury by G. Jeffrey Taylor A hundred scientists gathered to share new data and ideas about the important little planet closest to the Sun. |
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| 20 OCT 97 | Moonbeams and Elements by G. Jeffrey Taylor The amount of light reflected off the Moon can be used to determine elemental abundances from orbit. |
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