Astrobiology51- Page

Distance vs. Stellar Mass for over 15,000 known galaxies out to 50 Mpc (Ohlson et al. 2024). Galaxies are colorcoded by their Hubble “T” Type, with early type galaxies T

Cutout images from the first and fourth discovery observations of 3I/ATLAS from the ATLAS Chile, spanning approximately one hour. 3I/ATLAS is moving at 0.49 deg/day against the stellar background. The

(From Lorenzo et al. (2022)) RGB composite image of Sextans A made with Hα (red) and V bands (green) from Massey et al. (2007), and GALEX FUV (blue). The LITTLE

Hydrothermal Systems May Have Supplied Essential Phosphorus For Early Life — Tohoku University Understanding where and in what quantities essential elements for life have existed on Earth’s surface helps explain

Eccentricity and position snapshots over time of a simulation using the mixed scenario where all 4 terrestrial planets fit constraints and the Earth analogue had a final CC embryo impact.

Full data in Supplementary Tables S1, S2, S3 and S4. All data used in this figure are normalized for fragmentation (see text). A Trees show clustering of flora in each

Habitable Worlds Observatory — NASA The Habitable Worlds Observatory (HWO) aims to telescopically constrain the frequency and abundance of biospheres in the solar neighborhood. Origin-of-life theories vary in their predictions

Substructures in protoplanetary disks, such as (a) spiral arms and (b) gaps, can inform the location and mass of protoplanets that shape these substructures (marked with arrows here; e.g., Dong

Isolation sites, genomic assembly characteristics, and ANI-based taxonomic assignment of three extremophilic bacterial isolates. (a–c) Representative sampling sites of bacterial isolates: (a) Atacama Desert, (b) Salar de Huasco, and (c)

Scanning electron micrograph of the number 15 grain of sample plate C0105-042 from Ryugu, in which djerfisherite was discovered. (Hiroshima University/Masaaki Miyahara). The pristine samples from asteroid Ryugu returned by