Astrobiology77- Page

Image of Antarctica as seen by human eyes from orbit – Fram2/SpaceX Astrobiology.com Editor’s note: Recently the Fram2 mission took four astronaut explorers on an orbital path that covered both

Schematic diagram of steps in the theoretical model. Further description of key parameters, sampled ranges, and calculation procedures is found in Methods. — astro-ph.EP) The TRAPPIST-1 planetary system is observationally

Water line area maps expressed in units of µmˆ% of continuum. The four observation time windows are July 2011 at 67.09 µm, February 2012 at 66.44 and 67.09 µm, July-August

Plot of predicted peak absorption opacity, τ (peak) , that would be observed at instrumental velocity resolution, against the integration time required to detect that absorption at S/N

The conceptual scheme outlines the primary prerequisites for habitability in ocean worlds, highlighting the importance of water, energy, CHNOPS, and TMs. The horizontal bar on the bottom denotes our assessment

Nitrosopumilus maritimus, partially with virions of Nitrosopumilus spindle-shaped virus 1 (Thaspiviridae) attached. — Wikipedia Aerobic ammonia oxidation is crucial to the nitrogen cycle and is only known to be performed

A Sun halo —one of countless ways sunlight interacts with our planet Credit Si Gao When our planet and the incoming sunlight align just right, stunning phenomena such as rainbows

Image of the ‘sea walnut’ Mnemiopsis leydi Credit Joan-Josep Soto Angel Life depends on genes being switched on and off at exactly the right time. Even the simplest living organisms

DFT-computed energy profile for the most probable formation routes of GCA via radiative association. The energies include zero-point vibrational energy (ZPE), with the zero of energy set for GCA, shown