Astrobiology16- Page

A summary of the influencing factors on the clumped isotope values of methanogenesis. The points on this figure show the average measured and “pure” clumped isotope values of each methanogenic

Spatial distributions of MnS (left) and Na2S (right) clouds as a function of longitude, averaged over all latitudes, and pressure in our cloudy SPARC/MITgcm model. The color mapping represents the

CASCADES sample. Gray dots show all the stars of the Hipparcos sample with a precision on the parallax better than 14%. The green circles show the 641 targets of the

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

Shown here is an annotated composite image of the interiors of the 33 tubes NASA’s Perseverance Mars rover has used to collect samples as of July 24, 2025, the 1,574th

Figure 5.) Stromatolite lamination architectural types and associated examples, reproduced from Grey, K and Awramik, S.M. 2020, Handbook for the Study and Description of Microbialites (Geological Survey of Western Australia,

ASGSR 2025 We are pleased to announce the abstract submission deadline for ASGSR 2025 has been extended to August 1st, 2025 at 23:59 EDT. Don’t miss this final opportunity to

Near-UV to visible reflectance spectrum of 3I/ATLAS obtained with OSIRIS/GTC and normalized to unity at 5500 Å. Normalized reflectance of 1I/’Oumuamua (in brown) from Fitzsimmons et al. (2018) and 2I/Borisov

Image: The turquoise waters southeast of the Kuwaiti island of Failaka are captured in this image acquired by the Φsat-2 mission. — ESA Larger image The turquoise waters southeast of

This artist’s impression shows the planet-forming disc around the star V883 Orionis. In the outermost part of the disc, volatile gases are frozen out as ice, which contains complex organic