Results 1 to 10 of about 28,305,184 (308)

Galactic planetary science [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Planetary science beyond the boundaries of our Solar System is today in its infancy. Until a couple of decades ago, the detailed investigation of the planetary properties was restricted to objects orbiting inside the Kuiper Belt. Today, we cannot ignore that the number of known planets has increased by two orders of magnitude nor that these planets ...
Tinetti G.
openaire   +5 more sources

Review of Venusian and Martian ionospheres

open access: yes地球与行星物理论评, 2021
The launch of Tianwen 1 marks the brand-new stage of the deep space exploration of China, which calls for the foundation of planetary science education in China. In planetary science, the ionosphere is considered to be the region of an atmosphere where a
Yutian Cao   +3 more
doaj   +1 more source

Incorporating Physical Knowledge Into Machine Learning for Planetary Space Physics

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Recent improvements in data collection volume from planetary and space physics missions have allowed the application of novel data science techniques. The Cassini mission for example collected over 600 gigabytes of scientific data from 2004 to 2017. This
Abigail R. Azari   +3 more
doaj   +1 more source

Imbalanced classification applied to asteroid resonant dynamics

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Introduction: Machine learning (ML) applications for studying asteroid resonant dynamics are a relatively new field of study. Results from several different approaches are currently available for asteroids interacting with the z2, z1, M1:2, and ν6 ...
V. Carruba   +5 more
doaj   +1 more source

CMOS System-on-Chip Spectrometer Processors for Spaceborne Microwave-to-THz Earth and Planetary Science and Radioastronomy

open access: yesIEEE Journal of Microwaves, 2022
This article presents development of CMOS system-on-chip spectrometer processor for Spaceborne Earth Science, Planetary Science and Astronomy. The developed chip is intended for use in rotational emission spectroscopy observations from microwave to sub ...
Adrian Tang   +8 more
doaj   +1 more source

Factoring Origin of Life Hypotheses into the Search for Life in the Solar System and Beyond

open access: yesLife, 2020
Two widely-cited alternative hypotheses propose geological localities and biochemical mechanisms for life’s origins. The first states that chemical energy available in submarine hydrothermal vents supported the formation of organic compounds and ...
Alex Longo, Bruce Damer
doaj   +1 more source

Squeezing Data from a Rock: Machine Learning for Martian Science

open access: yesGeosciences, 2022
Data analysis methods have scarcely kept pace with the rapid increase in Earth observations, spurring the development of novel algorithms, storage methods, and computational techniques.
Timothy Paul Nagle-McNaughton   +2 more
doaj   +1 more source

Landforms Associated With the Aspect‐Controlled Exhumation of Crater‐Filling Alluvial Strata on Mars

open access: yesGeophysical Research Letters, 2023
Fluvial channel belts, the deposits accumulated in rivers surrounded by floodplain deposits, are sensitive environmental recorders. Across Mars, wind has exposed ancient channel belts via the preferential erosion of floodplain strata, creating landforms ...
Benjamin T. Cardenas, Kaitlyn Stacey
doaj   +1 more source

Planetary Sciences [PDF]

open access: yesEos, Transactions American Geophysical Union, 2002
Thirty years ago, most important planetary research could be found within a modest monthly journal, an annual conference proceedings, and a smattering of articles in AGU and other publications. Since then, planetary science has become an enormously successful enterprise; its literature is now published in several dedicated journals and forms a major ...
openaire   +1 more source

Electron Energization by Ion Density Enhancement in the Martian Magnetotail—MAVEN Observations

open access: yesThe Astrophysical Journal
It has been long observed at Mars that electron fluxes are enhanced during the tail current sheet crossings, of which the cause is not well understood. We use a novel approach to reveal one of the electron energization mechanisms with observations from ...
Shaosui Xu   +9 more
doaj   +1 more source

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