The researchers focused on exceptionally well-preserved sedimentary rocks deposited on ancient seafloors in what is now southern Sweden. Credit Unil How can we measure time more than 500 million years

Slime mould Dictyostelium discoideum protein complex Q55DI5 (AF-0000000066503175), annotated as a transcription elongation factor. The single chain looked disordered, but modelling the homodimer revealed that two chains intertwine, each contributing

Comet K1, whose full name is Comet C/2025 K1 (ATLAS) – not to be confused with interstellar comet 3I/ATLAS – was not the original target of a recent Hubble study.

F187N image showing Pa𝛼 emission line flux (MJy/sr), which can be treated as a proxy for FUV radiation. The dark blue regions have flux of the order 100 MJy/sr, and

Astrochemistry Status Report astro-ph.GA March 18, 2026 (Left) Depiction of the hemibonded CN radical adsorbed on a 14 H2O cluster. (Right, Top) Parallel geometries for the approach of C2H2 and

The strength of indirect detection signals from an Earth-like exoplanet as a function of stellar effective temperature. Bands encompassing main sequence spectral classes A through M color coded by temperature

Combined fit results for K2-79 b. Transit fit to the light curve data from K2 long cadence (first row left), TESS long cadence (first row centre), and CHEOPS (first row

Top: MIRI-MRS spectra of VHS 1256 b, with the spectral regions used for molecular detection highlighted for each species. Bottom: Corresponding Exo-REM molecular templates for the detected molecules, showing both

Co-added observed spectra of 3I with best-fit model Observed and modelled 13CN centred (left) and 15CN-centred (right) line profiles. The shaded region represents the uncertainty of the profile resulting from