Astrobiology49- Page

Depiction of the many factors affecting η⊕ and measurements therein. The three main colors offer a loose categorization into planetary, stellar, and statistical issues (red, purple, and blue, respectively), with

Artist concept of a cloudy Earth-like exoplanet with colorful biota in the clouds. Adam B. Langeveld/Carl Sagan Institute. Adapted from NASA/Ames/JPL-Caltech. An exoplanet with dense or even total cloud cover

Wind fields in our imposed TOA 𝐴𝑏 = 0.6 case. Top left: horizontal wind field at 250 hPa. Top right: Divergent component of the circulation, and the vertical pressure velocity

c. Approximate ages for the origin of nitrogenase isoforms are based on geochemical12 and phylogenetic data. — biorxiv.org Nitrogen isotope fractionation (ε15N) in sedimentary rocks has provided evidence for biological

VOYAGERS target stars were selected from 47,864 GES members following several screening steps. Available stellar properties were used to screen to 156 candidates. TRES spectra were then used to identify

Orbital evolution of satellites, in the relative system, to Constellation Titan — Satellite Navigation Exploring Saturn’s largest moon, Titan, presents unique orbital challenges due to its dense atmosphere, gravitational perturbations,

Field of view for WASP-135 b (image scale in arcsec/pix: 0.299772). Example image from 09 May 2024, with the target star, WASP-135, and the comparison star labeled in green and

NASA’s Mars 2020 Rover’s SHERLOC Instrument, located at the end of the robotic arm on NASA’s Mars 2020 rover. SHERLOC (short for Scanning Habitable Environments with Raman & Luminescence for

a) Illustration of a firefly flash sequence and a pulsar pulse sequence, which serves as the basis of the model discussed in this paper. b) Conceptualization of how the model

Model spectra (top) and Kp-voffset maps for the combination of all nights (bottom) of H2O, H2S, and CH4 for KELT-11 b. The grey shaded areas show the wavelength regions of