A modeling study finds that assumed magma composition and condensate chemistry can sharply alter predicted sub-Neptune atmospheres, sizes and spectra, but the results remain conditional on unverified chemistry and simplified planetary physics.
A modeled Venusian moon survives for up to 4.5 billion years in some scenarios but is destroyed in others, leaving a narrow, model-sensitive survival window.
An arXiv preprint describes TOI-4468 as a hot-Jupiter system with a validated outer planet and a separate, unconfirmed signal that may be a distant giant.
FAST observations of two bright 2024 comets found contrasting 18-centimeter OH signals, with model-derived production estimates and a tentative satellite-line identification in A3.
Under a shared idealized climate setup, 18 of 22 selected Earth-like planets met the study's temperature-based habitability criteria. Stellar heating shaped the broad climate split more than rotation, while pressure mattered most for the hottest modeled worlds.
A preprint model forecasts modest Leonid activity in 2031 and 2032, a sharp peak in 2033, and two 2034 encounters whose relative strength could reverse.
A laboratory study of eight Antarctic UCAMMs found three chemically distinct organic-matter types and a varied mineral assemblage, supporting a complex formation history.
A JWST modeling analysis of two benchmark brown dwarfs found different preferred cloud structures; one model also favored a possible thermal inversion, while the fits remained imperfect.
An analysis of InSight pressure readings found the K1 atmospheric wave mainly in late northern spring and northern autumn, with its largest reported amplitude during the C34 dust storm and a changing relationship with the S1 pattern.
A study of interstellar comet 3I/ATLAS during its inbound, pre-perihelion passage found steady red optical colors, consistent brightening, a persistent sunward jet and an antisolar tail. Spectra clearly detected CN, while evidence for C2 and C3 remained at upper-limit level. Dust-composition and water-ice conclusions remain model-dependent.
T. Santana-Ros et al 2026, ApJ, 1007, 1824 min read