Results 31 to 40 of about 24,105,224 (402)

Methodologies for Analyzing Soluble Organic Compounds in Extraterrestrial Samples: Amino Acids, Amines, Monocarboxylic Acids, Aldehydes, and Ketones

open access: yesLife, 2019
Soluble organic compositions of extraterrestrial samples offer valuable insights into the prebiotic organic chemistry of the solar system. This review provides a summary of the techniques commonly used for analyzing amino acids, amines, monocarboxylic ...
Danielle N. Simkus   +5 more
doaj   +1 more source

Planetary Mass Spectrometry for Agnostic Life Detection in the Solar System

open access: yesFrontiers in Astronomy and Space Sciences, 2021
For the past fifty years of space exploration, mass spectrometry has provided unique chemical and physical insights on the characteristics of other planetary bodies in the Solar System.
Luoth Chou   +16 more
doaj   +1 more source

The Solar System [PDF]

open access: yesProceedings of Westerbork Telescope 50th Anniversary — PoS(Westerbork), 2019
The Solar System Chapter 14.1: - 1980: Jupiter’s Radiation belts Chapter 14.2: - Participating in Solar Maximum Year ...
Imke De Pater, J. A. Bregman
openaire   +4 more sources

The galactic environment of the Sun [PDF]

open access: yes, 1999
The interstellar cloud surrounding the solar system regulates the galactic environment of the Sun and constrains the physical characteristics of the interplanetary medium.
Frisch, P. C.
core   +3 more sources

Solar System Formation in the Context of Extra-Solar Planets [PDF]

open access: yes, 2018
Exoplanet surveys have confirmed one of humanity's (and all teenagers') worst fears: we are weird. If our Solar System were observed with present-day Earth technology -- to put our system and exoplanets on the same footing -- Jupiter is the only planet ...
S. Raymond, A. Izidoro, A. Morbidelli
semanticscholar   +1 more source

The origin of the solar system [PDF]

open access: yesJournal of the Franklin Institute, 1924
The astronomer of to-day has at his disposal telescopes which range in aperture from his naked eye, of aperture about one-fifth of an inch, up to the giant Mount Wilson telescope of more than 100 inches. If we lived in the midst of a uniform infinite field of stars, or in a field which was uniform as far as our telescopes could reach, the numbers of ...
openaire   +3 more sources

The outer solar system [PDF]

open access: yesThe European Physical Journal Conferences, 2009
The outer solar system extends beyond a heliocentric distance of 5 AU. It contains the giant planets and their systems (rings and satellites), the Kuiper belt, the comets (except those which approach episodically the inner solar system) and, at its outer edge, the Oort cloud.
openaire   +3 more sources

Research on Multi-Scenario Variable Parameter Energy Management Strategy of Rural Community Microgrid

open access: yesApplied Sciences, 2020
Many rural communities in western China use renewable energy-based clean energy supply methods, and the community microgrid system of “photovoltaic + energy storage + electric heating” has been widely used. However, the energy management effect of such a
Lidong Guo   +3 more
doaj   +1 more source

Influence of gravity waves on the climatology of high-altitude Martian carbon dioxide ice clouds [PDF]

open access: yesAnnales Geophysicae, 2018
Carbon dioxide (CO2) ice clouds have been routinely observed in the middle atmosphere of Mars. However, there are still uncertainties concerning physical mechanisms that control their altitude, geographical, and seasonal distributions.
E. Yiğit, A. S. Medvedev, P. Hartogh
doaj   +1 more source

The great isotopic dichotomy of the early Solar System

open access: yesNature Astronomy, 2019
The isotopic composition of meteorites and terrestrial planets holds important clues about the earliest history of the Solar System and the processes of planet formation.
T. Kruijer, T. Kleine, L. Borg
semanticscholar   +1 more source

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