Synergies Between Venus And Exoplanetary Observations

By Keith Cowing
Status Report
February 14, 2023
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Synergies Between Venus And Exoplanetary Observations
A variety of emission spectra that could be potentially observed on exoplanets using the MIRI instrument aboard JWST. The planet-star flux ratio values are obtained by placing these atmospheres on the Venus-zone planet, L98-59d. — astro-ph.EP

In this chapter we examine how our knowledge of present day Venus can inform terrestrial exoplanetary science and how exoplanetary science can inform our study of Venus. In a superficial way the contrasts in knowledge appear stark.

We have been looking at Venus for millennia and studying it via telescopic observations for centuries. Spacecraft observations began with Mariner 2 in 1962 when we confirmed that Venus was a hothouse planet, rather than the tropical paradise science fiction pictured.

As long as our level of exploration and understanding of Venus remains far below that of Mars, major questions will endure. On the other hand, exoplanetary science has grown leaps and bounds since the discovery of Pegasus 51b in 1995, not too long after the golden years of Venus spacecraft missions came to an end with the Magellan Mission in 1994. Multi-million to billion dollar/euro exoplanet focused spacecraft missions such as JWST, and its successors will be flown in the coming decades.

At the same time, excitement about Venus exploration is blooming again with a number of confirmed and proposed missions in the coming decades from India, Russia, Japan, the European Space Agency and the National Aeronautics and Space Administration.

In this chapter, we review what is known and what we may discover tomorrow in complementary studies of Venus and its exoplanetary cousins.

M.J. Way, Colby Ostberg, Bradford J. Foley, Cedric Gillmann, Dennis Höning, Helmut Lammer, Joseph O’Rourke, Moa Persson, Ana-Catalina Plesa, Arnaud Salvador, Manuel Scherf, Matthew Weller

Comments: 90 pages, 14 figures, Part of the collection “Venus: Evolution Through Time” this https URL
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:2302.05718 [astro-ph.EP] (or arXiv:2302.05718v1 [astro-ph.EP] for this version)
Journal reference: Space Sci Rev 219, 13 (2023)
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Submission history
From: Michael Way
[v1] Sat, 11 Feb 2023 15:22:37 UTC (6,028 KB)

Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻