Exoplanetary atmospheres: key insights, challenges, and prospects

N Madhusudhan - Annual Review of Astronomy and …, 2019 - annualreviews.org
Exoplanetary science is on the verge of an unprecedented revolution. The thousands of
exoplanets discovered over the past decade have most recently been supplemented by …

Exoplanet biosignatures: a review of remotely detectable signs of life

EW Schwieterman, NY Kiang, MN Parenteau… - Astrobiology, 2018 - liebertpub.com
In the coming years and decades, advanced space-and ground-based observatories will
allow an unprecedented opportunity to probe the atmospheres and surfaces of potentially …

Exoplanet biosignatures: understanding oxygen as a biosignature in the context of its environment

VS Meadows, CT Reinhard, GN Arney… - Astrobiology, 2018 - liebertpub.com
We describe how environmental context can help determine whether oxygen (O2) detected
in extrasolar planetary observations is more likely to have a biological source. Here we …

The pale orange dot: the spectrum and habitability of hazy Archean Earth

G Arney, SD Domagal-Goldman, VS Meadows… - Astrobiology, 2016 - liebertpub.com
Recognizing whether a planet can support life is a primary goal of future exoplanet spectral
characterization missions, but past research on habitability assessment has largely ignored …

Impact of space weather on climate and habitability of terrestrial-type exoplanets

VS Airapetian, R Barnes, O Cohen… - International Journal of …, 2020 - cambridge.org
The search for life in the Universe is a fundamental problem of astrobiology and modern
science. The current progress in the detection of terrestrial-type exoplanets has opened a …

Evolved climates and observational discriminants for the TRAPPIST-1 planetary system

AP Lincowski, VS Meadows, D Crisp… - The Astrophysical …, 2018 - iopscience.iop.org
The TRAPPIST-1 planetary system provides an unprecedented opportunity to study
terrestrial exoplanet evolution with the James Webb Space Telescope (JWST) and ground …

[HTML][HTML] Exoplanet biosignatures: a framework for their assessment

C CatlingDavid, Y KiangNancy, D RobinsonTyler… - Astrobiology, 2018 - liebertpub.com
Finding life on exoplanets from telescopic observations is an ultimate goal of exoplanet
science. Life produces gases and other substances, such as pigments, which can have …

How to characterize habitable worlds and signs of life

L Kaltenegger - Annual Review of Astronomy and Astrophysics, 2017 - annualreviews.org
The detection of exoplanets orbiting other stars has revolutionized our view of the cosmos.
First results suggest that it is teeming with a fascinating diversity of rocky planets, including …

Reflections on O2 as a Biosignature in Exoplanetary Atmospheres

VS Meadows - Astrobiology, 2017 - liebertpub.com
Oxygenic photosynthesis is Earth's dominant metabolism, having evolved to harvest the
largest expected energy source at the surface of most terrestrial habitable zone planets …

What makes a planet habitable?

H Lammer, JH Bredehöft, A Coustenis… - The Astronomy and …, 2009 - Springer
This work reviews factors which are important for the evolution of habitable Earth-like
planets such as the effects of the host star dependent radiation and particle fluxes on the …