This review of martian organic geochemistry aims to contextualize recent findings of organic molecules in martian meteorites and from Mars missions within the broader study of origins of life on […]
Characterizing the coldest directly imaged companions through direct spectroscopy has only recently become possible with the James Webb Space Telescope.
![[LEFT] Haze mass mixing ratio, q1 [g g−1 ] (left column), and haze particle size , rh [nm] (right column), for the short formation timescale simulation at 10−5 bar (top row), 10−4 bar (second row), 10−3 bar (third row) and 10−2 bar (bottom row) pressure levels. The sub-stellar point is located at (0◦, 0◦). {RIGHT} same as LEFT but for the long haze formation timescale. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/06/Three-dimensional.png?resize=1200%2C720&ssl=1)
The formation and global spatial distribution of photochemically produced haze particles remain a key process in exoplanet atmospheres for understanding their observed properties. We aim to develop a flexible haze […]
The search for life beyond Earth will depend on detecting faint signatures in the atmospheres of potentially habitable exoplanets.
Many exoplanets have been observed with radius sizes between that of Earth and that of Neptune and are thus classified into two groups: super-earths (SEs) and mini-neptunes (MNs).
Detecting the tiny Doppler shifts induced by Earth-mass planets in stellar radial-velocity measurements remains extremely challenging due to stellar activity. Many deep-learning methods performing well on simulated data remain difficult […]
We report multi-band photometric imaging observations and Monte Carlo dust tail modelling of the interstellar comet 3I/ATLAS covering a wide range of heliocentric distances, from about 4 au pre-perihelion to […]
The proposed Wide-field Spectroscopic Telescope (WST) is a next-generation telescope facility with a 12-meter primary mirror that may be operational in the 2040s.
Scientists have uncovered new evidence from one of Earth’s most extreme ancient warming events, revealing how the climate may recover long after human-driven CO₂ emissions cease.
We present a simple, rule-based filter for SETI target selection that flags stars unlikely to host complex life and produces an audit-ready exclusion catalog.
