Astrobiology13- Page

Arctic sea ice maximum extent 2025, still image — NASA UC Riverside researchers have discovered a piece that was missing in previous descriptions of the way Earth recycles its carbon.

Extractions regions on images (blue = NRC-F210M, green = NRC-F335M, red = MIR-F770W) of NGC 7023 (left) and the Horsehead (right). The exciting star is off the top of the

Orbital evolution of protoplanets and changes in core density deficit and water content in atmosphere for (a) Case No.6, (b) No.7, (c) No.11, (d) No.12 (see Table 2). We show

Calibrated ages of the YDB layer at the three sites. Each figure shows the mean calibrated age as a white dot with thin black bars indicating the mean uncertainties. Dark

Simulated high-resolution spectra of the program star wasp-121 (an F-type star) and a G-type comparison star with a similar magnitude. The spectral resolution is degraded to 47,000, consistent with the

Apollo Lunar Sample Return Container (ALSRC) – National Air and Space Museum Physical samples and their associated data and metadata underpin scientific discoveries across disciplines and can enable new science

Visual Abstract — JACS Au via PubMed The emergence of biomolecules on the primordial Earth represents a pivotal scientific question for understanding the origin of life. Recent studies show that

A classification scheme for volatile-rich sub-Neptunes. The schematic compares different types of sub-Neptunes with H2 and H2O dominated atmospheres as a function of the equilibrium temperature and H2 content. Ice

Journey of a noncanonical amino acid into a polypeptide. The cell takes up the ncAA from its environment or biosynthesizes it. The ncAA should not interfere with the host metabolism

Sensitivity analysis of our model to the oxygen atom diffusion energy for CO2 ice (dashed lines) and FA (suming c-t abundances). Values are represented with respect to H2O column density-