Models Find a Narrow Route for Venus to Lose a Moon
A modeling study finds that tides could remove a hypothetical Venus moon, but only within a narrow and model-sensitive range of starting conditions.
Scientific publication4 min read
Specialty
Exoplanets & Planetary Science
12 published articlesPart of Astronomy & Space
Latest in Exoplanets & Planetary Science
Astronomers Validate a Cold Sub-Neptune Near the Ice Line
A preprint validates TOI-6981 b as a cold sub-Neptune around an M4 dwarf, while its mass and atmosphere remain unmeasured.
Scientific publication4 min read
Models link magma chemistry to starkly different sub-Neptune atmospheres
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.
Scientific publication5 min read
TOI-4468 hosts a hot Jupiter and a nearby outer planet
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.
Scientific publication4 min read
FAST Finds Contrasting OH Signals in Two Bright 2024 Comets
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.
Scientific publication4 min read
Leonid Model Forecasts Sharp 2033 Peak, Uncertain 2034 Split
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.
Scientific publication4 min read
Antarctic Micrometeorites Point to a Mixed Solar System Past
A laboratory study of eight Antarctic UCAMMs found three chemically distinct organic-matter types and a varied mineral assemblage, supporting a complex formation history.
Scientific publication4 min read
Study finds a roughly 70-year pattern in Earth's rotation
A long-term comparison of Earth-rotation records finds a broad cycle near 70 years, but the model's leap-second conclusion remains conditional.
Scientific publication4 min read
JWST Models Point to Contrasting Clouds on Two Brown Dwarfs
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.
Scientific publication4 min read
Analysis Favors Bare Rock on GJ 1132 b, but a Thin Atmosphere Is Possible
A combined analysis of GJ 1132 b's spectra found no convincing evidence for a substantial atmosphere and left a tenuous atmosphere possible.
Scientific publication3 min read
InSight data associate a Martian wave with dust-storm pressure changes
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.
Scientific publication3 min read
Preprint: Interstellar comet 3I/ATLAS brightened while its colors stayed nearly unchanged
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