A schematic of the key processes included in our abiotic Earth model. Remotely observable quantities (surface temperature, albedo, and atmospheric H2O and CO2) are in bold. Volatile cycling is diagrammed

Keith Cowing 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) 🖖🏻 Follow on

Comparison of the posteriors (solid lines) from our four different fiducial models, labeled inset. The dashed-lines represent the likelihood functions of each, and the solid grey line is the prior

Spectra of NEOs with (potential) 3-µm absorption features. (A) Spectrum of (161989) Cacus as observed on 3&4 September 2022. (B) (756998) 2024 CR9 as observed on 9 June 2024. (C)

Eccentricity evolution of the four planets in the TOI-700 system over 10,000 years of the integration after 100 Myr of evolution. This plot is a zoom-in of a small range

KUBIK onboard the ISS — NASA Expanding human space exploration necessitates technologies for sustainable local resource acquisition, to overcome unviable resupply missions. Asteroids, some of which rich in metals like

Image courtesy of Sylvie Bruggman The Federal Council has approved funding for the “Genesis” project on the origins of life, led by ETH Zurich in collaboration with the University of