An Overview of Exoplanet Biosignatures

EW Schwieterman, M Leung - Reviews in Mineralogy …, 2024 - pubs.geoscienceworld.org
In the last three decades, knowledge of planetary systems other than our own has increased
rapidly with the discovery of over 5,000 exoplanets (Christiansen 2022). These worlds vary …

Dynamics and clouds in planetary atmospheres from telescopic observations

A Sánchez-Lavega, P Irwin, A García Muñoz - The Astronomy and …, 2023 - Springer
This review presents an insight into our current knowledge of the atmospheres of the planets
Venus, Mars, Jupiter, Saturn, Uranus and Neptune, the satellite Titan, and those of …

Direct detection of atomic oxygen on the dayside and nightside of Venus

HW Hübers, H Richter, UU Graf, R Güsten… - Nature …, 2023 - nature.com
Atomic oxygen is a key species in the mesosphere and thermosphere of Venus. It peaks in
the transition region between the two dominant atmospheric circulation patterns, the …

Astrobiological potential of Venus atmosphere chemical anomalies and other unexplained cloud properties

JJ Petkowski, S Seager, DH Grinspoon, W Bains… - Astrobiology, 2024 - liebertpub.com
Long-standing unexplained Venus atmosphere observations and chemical anomalies point
to unknown chemistry but also leave room for the possibility of life. The unexplained …

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Planetary and cometary atmospheres

M Cordiner, A Thelen, T Cavalie… - Open Research …, 2024 - pmc.ncbi.nlm.nih.gov
The study of planets and small bodies within our Solar System is fundamental for
understanding the formation and evolution of the Earth and other planets. Compositional …

Ammonia and phosphine in the clouds of Venus as potentially biological anomalies

CE Cleland, PB Rimmer - Aerospace, 2022 - mdpi.com
We are of the opinion that several anomalies in the atmosphere of Venus provide evidence
of yet-unknown processes and systems that are out of equilibrium. The investigation of these …

Production and Reactions of Organic Molecules in Clouds of Venus

J Spacek, P Rimmer, GE Owens, SR Cady… - ACS Earth and Space …, 2023 - ACS Publications
For half a century, the possibility of organic molecules in sulfuric acid droplets in the clouds
above Venus has been largely discounted. Here, we report the first results from an …

[HTML][HTML] The COSPAR planetary protection requirements for space missions to Venus

MP Zorzano, K Olsson-Francis, PT Doran… - Life Sciences in Space …, 2023 - Elsevier
Abstract The Committee on Space Research's (COSPAR) Planetary Protection Policy states
that all types of missions to Venus are classified as Category II, as the planet has significant …

Venus, phosphine and the possibility of life

DL Clements - Contemporary Physics, 2022 - Taylor & Francis
The search for life elsewhere in the universe is one of the central aims of science in the
twent-first century. While most of this work is aimed at planets orbiting other stars, the search …

Comment on “Phosphine in the Venusian Atmosphere: A strict upper limit from SOFIA GREAT observations” by Cordiner et al.

JS Greaves, JJ Petkowski… - Geophysical …, 2023 - Wiley Online Library
Searches for phosphine in Venus' atmosphere have sparked a debate. Cordiner et al.(2022,
https://doi. org/10.1029/2022gl101055) analyze spectra from the Stratospheric Observatory …