Results 241 to 250 of about 42,046 (306)

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

The erosion of large primary atmospheres typically leaves behind substantial secondary atmospheres on temperate rocky planets. [PDF]

Nat Commun
Krissansen-Totton J, Wogan N, Thompson M, Fortney JJ.   +3 more
europepmc   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Discriminating abiotic and biotic organics in meteorite and terrestrial samples using machine learning on mass spectrometry data. [PDF]

PNAS Nexus
Saeedi D, Buckner D, Walton TA, Aponte JC, Aghazadeh A.   +4 more
europepmc   +1 more source

Graphite crystallinity and thermal record in Campo del Cielo IAB iron meteorite: A window into impact processing on a chondritic body

Meteoritics &Planetary Science, EarlyView.
Abstract The Campo del Cielo iron meteorite (IAB‐MG) provides a unique window into early solar system processes, particularly the formation and evolution of carbon phases in non‐magmatic iron meteorites. In this study, we conducted a systematic nanostructural investigation of three distinct graphite occurrences—cliftonite (type I), interstitial ...
Xiao Tian Deng, Hong Yi Chen, Yang Li, Jin Yu Zhang, Lan Fang Xie, Si Zhe Zhao, Zhuang Guo, Chen Li, Kai Rui Tai   +8 more
wiley   +1 more source

Life on Venus? [PDF]

Life (Basel)
Limaye SS.
europepmc   +1 more source

Sampling the volcanic plumes at Io: Impact speeds and shock conditions

Meteoritics &Planetary Science, EarlyView.
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell, R. C. Ogliore, P. J. Wozniakiewicz   +2 more
wiley   +1 more source

Tracing the inner edge of the habitable zone with sulfur chemistry. [PDF]

Sci Adv
Jordan S, Shorttle O, Rimmer PB.
europepmc   +1 more source

Understanding the Evidence Gaps: Diets and Fruit and Vegetable Intake Across Five Diverse Low‐ and Middle‐Income Countries

Maternal &Child Nutrition, EarlyView.
This perspective article synthesizes findings from scoping reviews examining diet and F&V intake, and interventions to increase F&V consumption among population groups in five countries: Benin, Fiji, the Philippines, Sri Lanka and Tanzania. ABSTRACT Poor dietary quality, particularly inadequate fruit and vegetable (F&V) intake, remains a significant ...
Manisha Tharaney, Sonja Y. Hess, Lilia Bliznashka, Dorcas A. Amunga, Fusta Azupogo, Nadia Koyratty, Taryn J. Smith, Imelda Angeles‐Agdeppa, Eva A. Goyena, Frederick Grant, Joyce Kinabo, Irene Medeme Mitchodigni, Anasaini Moala Silatolu, Renuka Silva, Mutinta Hambayi, Thushanthi Perera, Deanna K. Olney   +16 more
wiley   +1 more source

The Role of Atmospheric Composition in Defining the Habitable Zone Limits and Supporting E. coli Growth. [PDF]

Life (Basel)
Kuzucan A, Bolmont E, Chaverot G, Ferreira JQ, Ibelings BW, Bhatnagar S, McGinnis DF.   +6 more
europepmc   +1 more source