Archive for July, 20255- Page

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

Best-fit model to an empirical transmission spectrum of the cloudless Earth in units of scale height, H (adapted from (40)). Different colors indicate the contributions from various molecules. Despite its

Major steps in the disk detection process on two cubes: (far left) an unaltered cube; (center left) edge pixels identified using Canny edge detection – some pixels along terrain boundaries

Schematic of the layered systems: CO2 deposited on (a) bare gold (Au), (b) water ice on gold, (c) a silicate film on gold, and (d) ice on a silicate film

Envelope H2O mass fraction as a function of semi-major axis. The same dataset as in Figure 1 is shown. The left panel shows planets that predominantly formed inside the water

The 134Xe/132Xe versus 136Xe/132Xe diagram showing the composition of Tatahouine (#13349) and Shalka (#6766 C) measured at different heating steps, including those of Michel & Eugster (1994) and Eugster &