scholarly journals Did Lomonosov see the Venusian atmosphere?

Physics Today ◽  
2012 ◽  
Vol 65 (11) ◽  
pp. 11-12 ◽  
Author(s):  
Jay M. Pasachoff ◽  
William Sheehan
Keyword(s):  
Life ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 255
Author(s):  
Dirk Schulze-Makuch

The possible detection of the biomarker of phosphine as reported by Greaves et al. in the Venusian atmosphere stirred much excitement in the astrobiology community. While many in the community are adamant that the environmental conditions in the Venusian atmosphere are too extreme for life to exist, others point to the claimed detection of a convincing biomarker, the conjecture that early Venus was doubtlessly habitable, and any Venusian life might have adapted by natural selection to the harsh conditions in the Venusian clouds after the surface became uninhabitable. Here, I first briefly characterize the environmental conditions in the lower Venusian atmosphere and outline what challenges a biosphere would face to thrive there, and how some of these obstacles for life could possibly have been overcome. Then, I discuss the significance of the possible detection of phosphine and what it means (and does not mean) and provide an assessment on whether life may exist in the temperate cloud layer of the Venusian atmosphere or not.


2020 ◽  
Author(s):  
Eldar Z. Noe Dobrea ◽  
Jeff Freeman ◽  
Andrew R. Gibson ◽  
David Hall ◽  
Larry Lemke ◽  
...  

1971 ◽  
Vol 40 ◽  
pp. 44-47
Author(s):  
R. A. Hanel ◽  
V. G. Kunde ◽  
T. Meilleur ◽  
G. Stambach

The thermal emission spectra of Venus, Mars, Jupiter, and the moon were observed at the coude focus of the McDonald Observatory 107-inch telescope in the 400–1400 cm−1 spectral range with spectral resolutions of 0.3–0.7 cm−1. A preliminary interpretation of the Venus/lunar ratio spectrum allows identification of four upper state CO2 bands in the Venusian atmosphere at 791, 828, 865, and 961 cm−1 and confirms previous observations of the broad absorption-like depression around 890 cm−1. The rotational structure of the 791 and 961 cm−1 bands is well developed at this spectral resolution.


1970 ◽  
Vol 7 (5) ◽  
pp. 634-636
Author(s):  
S. H. KALFAYAN ◽  
R. H. SILVER

Author(s):  
A.V. Kosenkova ◽  
V.E. Minenko ◽  
D.N. Agafonov

At present, various projects to continue fundamental investigations of Venus are considered in Russia and abroad. It means that the issue of developing a landing module to reach the surface of the planet becomes topical, as the module might provide access to the regions most attractive in terms of research. We propose to use a landing module of the lifting body type, which, as compared to a ballistic class module, is not unacceptably complicated in terms of design and at the same time features a lift-to-drag ratio adequate for solving manoeuvring problems arising in the process of descent into the Venusian atmosphere to reach the target landing area. We consider potential descent trajectories available to a landing module of this type, including the possibility of performing a maximum lateral manoeuvre; we took into consideration its long-period trajectories characterised by multiple re-entries into the dense atmosphere and compared these trajectories to the descent trajectory of a conventional ballistic class landing module. We show that using a manoeuvrable craft expands the selection of potential landing regions, as well as reduces loads and broadens the scope of scientific problems to be solved and studies to be undertaken


2018 ◽  
Vol 45 (5) ◽  
pp. 2554-2562 ◽  
Author(s):  
D. A. Gorinov ◽  
I. V. Khatuntsev ◽  
L. V. Zasova ◽  
A. V. Turin ◽  
G. Piccioni

Icarus ◽  
1982 ◽  
Vol 51 (2) ◽  
pp. 302-321 ◽  
Author(s):  
W.J. Borucki ◽  
Z. Levin ◽  
R.C. Whitten ◽  
R.G. Keesee ◽  
L.A. Capone ◽  
...  

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