The search for both extant and extinct life within our Solar System and beyond has been a primary motivation for space exploration since its inception. Mars has long been a

Transmission electron microscope image at low and high magnifications of a cell grown under 20 MP — Frontiers Under its thick ice layer, Europa contains a shielded liquid water ocean where

(Left) North and (right) south polar azimuthal equidistant projection enhanced color-composite maps, , with the blue, green, and red channels assigned to the ul-band, v-band, and p-band. The circumference is

Time-dependent geoid predictions. Geoid anomalies are shown at: (A) 65 Ma, (B) 40 Ma, and (C) 0 Ma, predicted from the time-dependent reconstruction of 3D mantle structure at 70 Ma.

Graphical Abstract Communications Chemistry via PubMed The presence of amino acids in comets and meteorites has long suggested that prebiotic molecules may have formed in space and contributed to the

Hadean Earth – Grok via Astrobiology.com New research led by scientists at the University of Wisconsin–Madison has uncovered chemical signatures in zircons, the planet’s oldest minerals, that are consistent with

Graphical Abstract — Astrobiology Habitable Environment Database Age estimates for the emergence of oxygenic photosynthesis derived from molecular clock analyses reach back to the Archean, substantially predating geochemical evidence of