Artist’s view of the Kepler-725 system. The small planet in the lower right is the newly discovered super-Earth in the habitable zone. (Image by GU Shenghong) “Are we alone?” This

Maps showing Callisto’s bolometric albedo (a; from Camarca et al. 2023) compared with the spectral slope from 360 to 410 nm (b), which measures the strength of the near-UV downturn

Left panel: simulated, noise-free spectra of water ice (dashed dark-blue curve) and selected trace species of interest. Middle panel: simulated spectra of non-water-ice species mixed with water ice, at an

Flowchart of the experimental design. The DNA was extracted from C. antarcticus colonies and divided into two 1.5 mL Eppendorf tubes, one containing a Martian regolith analogue and the other

The Pacific Ocean As Seen From Space — NASA Call for Applicants The NASA Astrobiology Program is hosting a Mission Ideation Factory focused on the search for life on Ocean

3D structure of CH2CCN with spin density distribution, generated with Avogadro 1.2.0.90 The spin density is visualized using an isosurface of value 0.02 (in au). — astro-ph.GA Cyanopolyynes, a family

M-a distribution, updated from Figure from Kempton and Knutson (2024). The solid-colored points have atmospheric spectra as of April 28, 2025 and the transparent points do not. The additional data