Astrobiology64- Page

Schematic representation of the relationship between criteria, “arguments,” and false positive/negative potential within the Life Detection Knowledge Base (LDKB). Knowledge sourced from peer-reviewed publications is represented in the LDKB in

The time evolution of the stellar spectra occulted by the planet as a function of orbital phase, in the wavelength range 5882–5902 Å, which includes the sodium doublet. The positions

Two examples of Martian dunes with linear dune gullies. North is up in both images. (a) Linear dune gullies on a dune field in Galle crater (HiRISE image ESP_077477_1280_MIRB). (b)

Top: Simulated EVE observation of an exocomet transit of a K7V at 100 pc expected during a 20 d stare at ∼20 Myr Theia 43 or 45 associations. We scale

Mass distribution inside the plume (left) and leaving the plume (right) for the different particle sizes along the plume vertical extent for the low (top) and high (bottom) plume cases.

Snapshots maps of horizontal winds 10 m above the local surface (m s−1 ) at midday (left) and midnight (right) in the centre of the Equatorial (top) and Polar (bottom)

A hydrothermal vent on the Mid-Atlantic Ridge. Hot, mineral-rich fluids are distributed throughout the ocean via the dispersion cloud, known as the plume. The photo was taken during the M190

Using the James Webb Space Telescope’s (JWST) Mid-Infrared Instrument (MIRI), researchers detected organic molecules with more than six atoms frozen in ice around a young star called ST6 forming in

Scientific Society For Astrobiology (SSA) Incorporated in May 2022, the SSA is a professional society that advances the field of astrobiology by fostering collaborations amongst members and helping to boost

Sketch of the protoplanetary disc structure. In the inner region of the disc, where the gas is sufficiently hot (𝑇c > 𝑇crit), the gas is ionized and well-coupled to the