Results 21 to 30 of about 53,886 (238)

Venus Atmospheric Composition In Situ Data: A Compilation

open access: yesEarth and Space Science, 2019
The Venus atmosphere is of significant interest yet only rudimentary solid data have been gathered about its composition and chemistry. These measurements are scattered through time and place and are limited by parameters such as resolution and error ...
Natasha M. Johnson   +1 more
doaj   +1 more source

The second Venus flyby of BepiColombo mission reveals stable atmosphere over decades

open access: yesNature Communications, 2023
Studies of the Venusian mesosphere provide important information about the current state of the entire Venusian atmosphere. This includes information about the dense cloud structure, its vertical thermal profile, temperature fields, and the resulting ...
Jörn Helbert   +6 more
doaj   +1 more source

Exploring the Habitability of Venus: Conceptual Design of a Small Atmospheric Probe

open access: yesAerospace, 2021
The possible presence of life in the atmosphere of Venus has been debated frequently over the last 60 years. The discussion was recently reignited by the possible detection of phosphine (PH3), but several other chemicals potentially relevant for life ...
Pol Ribes-Pleguezuelo   +6 more
doaj   +1 more source

A Wind Study of Venus’s Cloud Top: New Doppler Velocimetry Observations

open access: yesAtmosphere, 2020
At Venus’s cloud top, the circulation is dominated by the superroration, where zonal wind speed peaks at ∼100 ms−1, in the low-to-middle latitudes. The constraining of zonal and meridional circulations is essential to understanding the mechanisms driving
Ruben Gonçalves   +4 more
doaj   +1 more source

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+1 more source

The Demographics of Terrestrial Planets in the Venus Zone

open access: yesThe Astronomical Journal, 2023
Understanding the physical characteristics of Venus, including its atmosphere, interior, and its evolutionary pathway with respect to Earth, remains a vital component for terrestrial planet evolution models and the emergence and/or decline of planetary ...
Colby Ostberg   +9 more
doaj   +1 more source

Solar energetic particle interactions with the Venusian atmosphere [PDF]

open access: yesAnnales Geophysicae, 2016
In the context of planetary space weather, we estimate the ion production rates in the Venusian atmosphere due to the interactions of solar energetic particles (SEPs) with gas.
C. Plainaki   +5 more
doaj   +1 more source

The deep atmosphere of Venus

open access: yesPhilosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1994
Venus as a planet resembles the Earth, but has a much hotter and denser atmosphere due to an extreme case of the greenhouse effect, caused by compositional differences and the thick cloud cover. Studies of the lower atmosphere are inhibited by the cloud opacity, which makes remote measurements at most frequencies short of the radio range quite ...
Calcutt, S, Taylor, F
openaire   +2 more sources

Venus transit 2004: Illustrating the capability of exoplanet transmission spectroscopy

open access: yes, 2011
The transit of Venus in 2004 offered the rare possibility to remotely sense a well-known planetary atmosphere using ground-based observations for absorption spectroscopy.
Arnold   +54 more
core   +3 more sources

Winds in the Lower Cloud Level on the Nightside of Venus from VIRTIS-M (Venus Express) 1.74 μm Images

open access: yesAtmosphere, 2021
The horizontal wind velocity vectors at the lower cloud layer were retrieved by tracking the displacement of cloud features using the 1.74 µm images of the full Visible and InfraRed Thermal Imaging Spectrometer (VIRTIS-M) dataset. This layer was found to
Dmitry A. Gorinov   +4 more
doaj   +1 more source

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