Results 21 to 30 of about 55,918 (290)
The June 2012 transit of Venus. Framework for interpretation of observations [PDF]
, 2012 Ground based observers have on 5/6th June 2012 the last opportunity of the century to watch the passage of Venus across the solar disk from Earth. Venus transits have traditionally provided unique insight into the Venus atmosphere through the refraction ...
Mills, F. P., Muñoz, A. García
core +2 more sources
Exploring the Habitability of Venus: Conceptual Design of a Small Atmospheric Probe
Aerospace, 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
Philosophical 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
The Effect of Recent Venus Transit on Earths Atmosphere
Annals of Geophysics, 2006 Some experiments on June 8, 2004, the day of transit of Venus across the Sun, were undertaken at Kolkata (latitude: 23034? N) to observe effect, if any, of transit of Venus on FWF, ELF and VLF amplitudes.
H. P. Sardar +9 more
doaj +3 more sources
Venus Atmospheric Composition In Situ Data: A Compilation
Earth 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
Photochemistry of the Venus Atmosphere [PDF]
Journal of the Atmospheric Sciences, 1973 Carbon monoxide, produced in the Venus atmosphere by photolysis of CO_2, is removed mainly by reaction with OH. The radical OH is formed in part by photolysis of H_2O_2, in part by reaction of O with HO_2. Photolysis of HCl provides a major source of H radicals near the visible clouds of Venus and plays a major role in the overall photochemistry.
McElroy, Michael B. +2 more
openaire +1 more source
The Atmospheres of Mars and Venus [PDF]
Annual Review of Astronomy and Astrophysics, 1971 Of all the planets which may exist in the Universe, only nine have been studied by man. As a result, one cannot classify planets with the same confidence that one has in classifying stars; there is no theory of planetary evolution comparable in development to the theory of stellar evolution.
Ingersoll, Andrew P. +1 more
openaire +3 more sources
The Demographics of Terrestrial Planets in the Venus Zone
The 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]
Annales 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
Extended Rift‐Associated Volcanism in Ganis Chasma, Venus Detected From Magellan Radar Emissivity
Geophysical Research Letters, 2022 Exploration of Venus in the 1970–1990s revealed that the geology of Venus, the most Earth‐like of the terrestrial planets, was decidedly un‐Earth‐like, with no plate tectonics, and no record of the first 80% of its history.
J. Brossier, M. S. Gilmore, J. W. Head
doaj +1 more source