Results 81 to 90 of about 39,453 (210)

A feasibility assessment of micromill sampling for Rb‐Sr and Sm‐Nd geochronology of shergottites

Meteoritics &Planetary Science, EarlyView.
Abstract Accurate dating of Martian meteorites is crucial for understanding key events in the planet's evolution. However, not all Martian meteorites are amenable to dating techniques currently in use for these rocks. The priority of sample preservation precludes mineral separation methods for low‐volume specimens, whereas the less destructive in situ ...
A. I. Sheen, C. D. K. Herd, K. T. Tait
wiley   +1 more source

Starshade Rendezvous Probe [PDF]

The Starshade Rendezvous Probe Mission (https://smd-prod.s3.amazonaws.com/science-red/s3fs-public/atoms/files/Starshade2.pdf ) [1] will be the first space-based, high-contrast imaging mission with the potential to detect and characterize Earth-like ...
Booth, Jeff, Greenhouse, Matt, Kasdin, N. Jeremy, Lisman, Doug, Macintosh, Bruce, Seager, Sara, Shaklan, Stuart, Vess, Melissa, Warwick, Steve, Webb, David   +9 more
core   +1 more source

First preliminary tests of the general relativistic gravitomagnetic field of the Sun and new constraints on a Yukawa-like fifth force from planetary data

, 2007
The general relativistic Lense-Thirring precessions of the perihelia of the inner planets of the Solar System are about 10^-3 arcseconds per century. Recent improvements in planetary orbit determination may yield the first observational evidence of such ...
Adelberger, Ashby, Barker, Bertolami, Bertotti, Ciufolini, Ciufolini, Ciufolini, Ciufolini, Cugusi, Damour, de Sitter, Dvali, Everitt, Everitt, Fienga, Fischbach, Fitch, Iorio, Iorio, Iorio, Iorio, Iorio, Iorio, Iorio, Krasinsky, L. Iorio, Lense, Lucchesi, Lucchesi, Lue, Mashhoon, Mecheri, Murphy, Newhall, Nordtevdt, Nordtvedt, Nordtvedt, Paternò, Pijpers, Pijpers, Pitjeva, Pitjeva, Reynaud, Ries, Ruggiero, Schiff, Sereno, Sereno, Sereno, Soffel, Standish, Stella, Thorne, Will   +54 more
core   +1 more source

Northwest Africa 13489: A Strongly Metamorphosed Ungrouped Carbonaceous Chondrite

Meteoritics &Planetary Science, EarlyView.
Abstract NWA 13489 is a meteorite that has been classified as a brachinite. Brachinites are olivine‐rich primitive achondrites representing residual products after a variable degree of silicate melt extraction on a barely differentiated, noncarbonaceous asteroid.
T. Cuppone, C. Carli, M. Casalini, A. Stephant, C. R. Greenwood, G. Pratesi   +5 more
wiley   +1 more source

Documenting microbial populations within the University of Alberta Meteorite Curation Facility using 16S rRNA gene sequencing: Implications for the curation of astromaterials

Meteoritics &Planetary Science, EarlyView.
Abstract Meteorites are easily contaminated at the Earth's surface by microbial activity. Here, DNA extracts from two meteorite specimens and samples from curation laboratory surfaces are analyzed with amplicon sequencing, to understand microbial communities that contaminate meteorites and that may be resident in curation facilities.
Libby D. Tunney, Aaron B. Regberg, Christopher D. K. Herd, Richard E. Davis, Christian L. Castro   +4 more
wiley   +1 more source

MOA-2011-BLG-262Lb: A Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge

, 2014
Research was continued as result of the funding.
Bennett, D. P., Pietrzynski, G., Dekany, I., Minniti, D.   +3 more
openaire   +2 more sources

Asuka 12236 more primitive than Paris: Clues given by their Infrared and Raman micro‐spectroscopy signatures

Meteoritics &Planetary Science, EarlyView.
Abstract Carbonaceous chondrites are meteorites originating from undifferentiated objects of the Solar System, which may retain signatures of primitive matter. Here, we present a comparative study between two CM chondrites Asuka 12236 and Paris, both considered among the most primitive in the carbonaceous chondrite meteorite collection.
Zahia Djouadi, Vassilissa Vinogradoff, Zelia Dionnet, Coline Serra, Douchka Dimitrijevic, Alexandra Malnuit, Cateline Lantz, Philippe Claeys, Steven Goderis, Louis Le Sergeant d'Hendecourt   +9 more
wiley   +1 more source

NASA Science4Girls and Their Families: Connecting Local Libraries with NASA Scientists and Education Programs to Engage Girls in STEM [PDF]

NASA Science4Girls and Their Families (NS4G) partners NASA Science Mission Directorate (SMD) education programs with public libraries to provide hands-on science, technology, engineering, and math (STEM) activities and career information for girls and ...
Bleacher, L. V., Hauck, K., Meinke, B., Soeffing, C., Spitz, A.   +4 more
core   +1 more source

Early Career Recommendations for the Equitable Growth of a Marine Carbon Dioxide Removal Sector

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract In addition to steep carbon emission reductions, all modeled pathways to reach global climate goals require carbon removal. Marine carbon dioxide removal has the potential to play a large role in drawing down legacy anthropogenic emissions due to the scalability and durability of proposed methods.
G. D. Kitch, P. J. Duke, K. C. Grabb, S. Simancas‐Giraldo, F. O. Adekunbi, C. I. Addey, L. A. Arbilla, A. C. O. Carvalho, S. N. Chu, R. A. Green, S. Hamnca, A. Ghosh, A. Kirkland, K. B. Lowder, M. Meléndez, M. Fontela, K. Robache, M. C. Ringham, J. Rønning, K. M. Schockman, M. M. Stoll, R. Renó de Oliveira, E. K. Wright‐Fairbanks   +22 more
wiley   +1 more source

Microlensing path parametrization for Earth-like Exoplanet detection around solar mass stars

, 2018
We propose a new parametrization of the impact parameter u0 and impact angle {\alpha} for microlensing systems composed by an Earth-like Exoplanet around a Solar mass Star at 1 AU.
de Almeida, L., Nascimento Jr, J. -D. do
core   +2 more sources