Results 41 to 50 of about 61,565 (266)
A primordial atmospheric origin of hydrospheric deuterium enrichment on Mars [PDF]
, 2022 The deuterium-to-hydrogen (D/H or 2H/1H) ratio of Martian atmospheric water (~6x standard mean ocean water, SMOW) is higher than that of known sources, requiring planetary enrichment. A recent measurement by NASA's Mars Science Laboratory rover Curiosity of >3 Gyr clays yields a D/H ratio ~3x SMOW, demonstrating that most enrichment occurs early in ...
arxiv +1 more source
Revisiting the Solar Wind Deceleration Upstream of the Martian Bow Shock Based on MAVEN Observations
The Astrophysical JournalThe solar wind deceleration upstream of the Martian bow shock is examined using particle and magnetic field measurements obtained by the Mars Atmosphere and Volatile EvolutioN (MAVEN).
Yuqi Liu +8 more
doaj +1 more source
Martian atmospheric O3 retrieval development for the NOMAD-UVIS spectrometer [PDF]
, 2017 The composition of atmospheric trace gases and aerosols is a highly variable and poorly constrained component of the martian atmosphere, and by affecting martian climate and UV surface dose, represents a key parameter in the assessment of suitability for
Hathi, B. +7 more
core
The Astrophysical Journal, 2023 The behavior of the Martian ionosphere during global dust storms has always been a popular topic. Based on many Mars Atmosphere and Volatile Evolution observations, a Martian ionospheric electron density model is constructed herein using a physical-grid ...
ShengBin Zhong +3 more
doaj +1 more source
Interactions of rare earth elements with living organisms and emerging biotechnical applications
PLANTS, PEOPLE, PLANET, EarlyView.Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey +6 more
wiley +1 more source
Earth and Planetary Physics, 2020 Forbush decreases are depressions in the galactic cosmic rays (GCRs) that are caused primarily by modulations of interplanetary coronal mass ejections (ICMEs) but also occasionally by stream/corotating interaction regions (SIRs/CIRs).
Jingnan Guo +4 more
doaj +1 more source
Observations of Locally Generated Whistler-mode Waves in the Martian Magnetotail Current Sheet
The Astrophysical Journal, 2023 The whistler-mode wave is an electromagnetic wave that commonly occurs in space plasma and has been extensively studied, especially within the Earth's magnetosphere. They have also been reported in the near-Mars space, such as Martian upstream solar wind,
Xiao Ma +6 more
doaj +1 more source
The trapped heavy noble gases in recently found Martian meteorites [PDF]
, 2002 The composition of the trapped Ar, Kr, and Xe in the Martian meteorites Los Angeles, Say Al Uhaymir 005/008, and 094 is discussed and found to be consistent with a mixture of Martian mantle and atmosphere noble gases and terrestrial ...
Busemann, H., Eugster, O.
core
Space Economy and Sustainability: A Systematic Review
Sustainable Development, EarlyView.ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente +2 more
wiley +1 more source
steel research international, EarlyView.The iron‐steam process is an emerging technology for hydrogen production and storage, gaining attention due to its potential for sustainability and cost‐effectiveness. Developing an inexpensive and stable contact mass with maximum oxygen capacity while maintaining suitable reaction kinetics and chemical yields remains a challenge.
Julien Göthel +2 more
wiley +1 more source