Astrobiology31- Page

Stellar SEDs for α Cen A (blue) and B (orange) binned to 1 ˚A. The SED of the Sun, scaled to a distance of 1.33 pc, from Woods et al.

A color–magnitude Hess diagram of Sextans A with JWST/ NIRCam photometry at 2.7 and 4.4 μm with the positions of the JWST/LRS targets overplotted. COLIBRI isochrones with = −1.7

The initial condition of the converging flow simulation. The color shows the number density of hydrogen nuclei on the 𝑧 = 0 plane. — astro-ph.GA We investigate the chemical evolution

Adelaide Rift Complex — Source, Sentinel EU During the Precambrian, stromatolite reefs played an essential role in the evolution of Earth’s climate and life systems. Many Precambrian basins contain salt-influenced

popEVE combines variation from across evolutionary sequences, modeled with EVE and ESM-1v, with variation within the human population (UKBB17 or GnomAD18), using a Gaussian process to learn the relationship between

The abundance ratios, log(X/O), versus metallicity for nitrogen (top-left), neon (top-right), sulphur (bottom-left) and argon (bottom-right). The blue lines shows literature relations derived by Izotov et al. (2006), Andrews &

Dale Andersen at Lake Untersee, Antarctica holding up the ISS Crew 11 patch on 11 Jan 2026 – Dale T. Andersen Keith’s note: Dale Andersen and his astrobiology research team

Images from NASA’s James Webb Space Telescope of the dwarf galaxy Sextans A reveal polycyclic aromatic hydrocarbons (PAHs), large carbon-based molecules that can be a signifier of star formation. The

TESS target pixel file image created with tpfplotter for TOI-6716 (left) and TOI-7384 (right) observed in Sector 88 (2025 Jan 14 – 2025 Feb 11) and Sector 87 (2024 Dec

Color-magnitude diagram showing the targets in the ExEP target list for HWO. The grey points represent a sample of stars within 100 pc taken from Gaia DR3. The cyan points