17 papers · ranked by Valyu relevance
Siddharth Bhatnagar, Emeline Bolmont, Nikita J. Boeren, Janina Hansen + 17 more
Siddharth Bhatnagar\ ★ [0000 −0001 −9178 −168 , Emeline Bolmont\ ★ [0000 −0001 −5657 −4503 , Nikita J. Boeren\ [0000 −0001 −6162 −6953 , Janina Hansen\ [0009 −0003 −1247 −8378 , Bjorn Konrad\ ¨ [0000 −0002 −9912 −8340 , Leander Schlarmann\ [0000 −0001 −5800 −132 , Eleonora Alei [0000 −0002 −0006 −1175 , Marie Azevedo…
Antígona Segura, Manuel Güdel, Konstantin Herbst, Dibyendu Nandy + 3 more
This chapter will review the deep connection of planetary habitability and stellar irradiation. We present the long-term stellar evolution as one of the drivers of atmospheric escape and climate changes on exoplanets, as well as the chemistry driven by stellar UV and stellar energetic particles. Habitability is…
Stephen R. Kane
The Keplerian orbit of a terrestrial planet can be a significant driver in the evolution of surface conditions, as well as influencing the overall dynamics of the system. The HD 20794 system harbors three confirmed planets orbiting a nearby G-type star, including HD 20794 d, a $\sim$5.82 $M_\oplus$ (minimum mass)…
Kyle Batra, Stephanie Olson, Edward Schwieterman
Past work has shown that ocean salinity and planetary obliquity both influence the climates of Earth-like exoplanets throughout the habitable zone of Sun-like stars. The effects of salinity and obliquity can be profound, with low vs. high salinity or obliquity resulting in distinct climate states in some scenarios.…
Tilman Spohn, Aki Roberge, M. J. Way, João C. Duarte + 4 more
This article reviews the emerging field of exo-geoscience, focusing on the geological and geophysical processes thought to influence the evolution and (eu)habitability of rocky exoplanets. We examine the possible roles of planetary interiors, tectonic regimes, continental coverage, volatile cycling, magnetic fields…
Karen Donaldson, Jonah Mack, Yuchen Shang, Ian Underwood + 3 more
One key objective of astrobiology is to investigate and discover if other planetary bodies are habitable. The determination of whether an environment is habitable to known life requires measuring liquid water, CHNOPS elements, other nutrients, and energy supplies. Here we investigate the potential for a single…
Gabriel Harry
The Earth is rare and large-scale interstellar travel may be unfeasible - instead of migrating to other solar systems, future civilisations on Earth may have to remain. However, left unchecked, the Earth's current habitability will end in one billion years. This paper investigates and conceptualises a set of…
José Halloy, Petros Chatzimpiros, François Graner, Thomas Gregor
- 1 Universit´e Paris Cit´e, CNRS, LIED UMR 8236, F-75006 Paris, France - 2 Universit´e Paris Cit´e, CNRS, MSC UMR 7057, F-75006 Paris, France - 3 Joseph Henry Laboratory of Physics & Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA - 4 Department of Stem Cell and…
Prahalad Srikanthan, Joshua Copping, Christopher Hassall
Nature-based solutions (NbS), including blue carbon ecosystems, are crucial to meeting Net-Zero targets. The UK’s Net-Zero 2050 strategy, alongside terrestrial measures, prioritises large-scale offshore wind development, creating opportunities to integrate marine NbS into Net-Zero plans. Consequently, aligning…
Daria Kubyshkina, M. J. Way, Iannis Dandouras, Helmut Lammer + 6 more
Volatile loss from exoplanetary atmospheres and its possible implications for the longevity of habitable surface conditions is a topic of vigorous debate currently. The vast majority of the habitable zone terrestrial-like exoplanets known to date orbit low-mass M- and K-dwarf stars and are subject to the conditions…
Tilman Spohn, Akli Roberge, M. J. Way, João C. Duarte + 4 more
This article reviews the emerging field of exo-geoscience, focusing on the geological and geophysical processes thought to influence the evolution and (eu)habitability of rocky exoplanets. We examine the possible roles of planetary interiors, tectonic regimes, continental coverage, volatile cycling, magnetic fields…
Thomas W. Wong Hearing, Mark Williams, Jan Zalasiewicz, Heiko Balzter + 19 more
We evaluate episodes of biosphere change throughout Earth history and compare them with contemporary and near-future anthropogenic changes, developing the concept of biosphere disruptors – agents that force global-scale macroevolutionary change. Transient disruptors are geologically short-lived agents (mean 8.0×10^5^…
Adam Robinson, Shannon McQuaig-Ulrich, Tyler Dondero, Aaron Celestian + 1 more
The present-day martian surface is generally considered inhospitable to life because of low atmospheric pressure, intense surface radiation, global desiccation, and oxidizing chemistry which has been increasing since the late Noachian. However, shallow martian subsurface regions where mineralogy has shown groundwater…
Rong Liu, Collin P. Gross, Barnabas H. Daru
A central goal of biogeography is to partition the world’s biota into meaningful biogeographical regions. While naturalists have long delineated biogeographic regions using hierarchical hard clustering approaches, they have often acknowledged the existence of transition zones. However, such transition zones have not…
Fabio A. Machado, Anna Penna, Diogo Melo, Barbara A. Costa + 7 more
Directional selection is often viewed as a transient force in macroevolution, with its signal eroded over time by stabilizing and fluctuating selection. Yet, transitions into new adaptive zones are predicted to impose strong and sustained selective pressures that may leave a detectable signature even across deep…
Michael R. Stukel, Lihini I. Aluwihare, Daniele Bianchi, Heather J. Forrer + 1 more
The biological carbon pump (BCP) transports carbon fixed by phytoplankton into the deep ocean via multiple pathways and leads to net carbon dioxide sequestration. The BCP is very active in highly productive eastern boundary upwelling systems (EBUSs), however, the extent to which climate change will impact this key…
Julian Chela-Flores, Doron Lancet, Roy Yaniv, Addy Pross
Within the payloads of JUICE and Europa Clipper, there are instruments suitable for the search of specific biosignatures that can diagnose life tracks in two ways. The payloads include mass spectrometers capable of measuring isotopic abundances for identifying life, and chromatography instruments testing whether ocean…