[ESA] Three years since launch, ESA’s Euclid space telescope reveals the Milky Way galaxy’s centre in extraordinary detail: a mosaic of tens of millions of stars captured in just 26 […]
imaging
Posted inExoplanets, -moons, -comets
How A Giant Planet Survived Its Star’s Death
[Northwestern University] When astronomers discovered a giant planet orbiting a dead star in 2020, they wondered how it survived its star’s violent demise. Now, observations from NASA’s James Webb Space […]
Posted inExoplanets, -moons, -comets
Improving Exoplanet Mass Characterisation With Bayesian Model Selection Using The Learned Harmonic Mean Estimator
[astro-ph.EP] Radial velocity (RV) analyses require modelling choices (such as eccentricity treatment, noise model, velocity trends, and number of planets) that can significantly affect derived planetary masses.
Posted inSETI & Technosignatures
Critical Evaluation of Studies Alleging Evidence for Technosignatures in the POSS1-E Photographic Plates
[astro-ph.IM] Recent studies by B. Villarroel et al. have assembled and analysed datasets of unidentified features measured from digital scans of pre-Sputnik photographic plates. We have examined the claims in […]
Posted inComets and Asteroids
The Dust Mineralogy of Interstellar Comet 3I/ATLAS from JWST/MIRI Observations
[astro-ph.EP] We present the first spectroscopic mineralogical analysis of the dust coma of an interstellar object (ISO) from JWST mid-infrared spectroscopy of 3I/ATLAS (3I).
Posted inMars
Curiosity Rover Takes a Close Look at Martian Sulfur Crystals
[NASA] These sulfur crystals were found inside a rock after NASA’s Curiosity Mars rover happened to drive over it and crush it on May 30, 2024, the 4,200th Martian day, […]
Posted inMars
Mars Perseverance Image of the Week for Week 280 (June 21 – 27, 2026)
[NASA] This photo was selected by public vote and featured as “Image of the Week” for Week 280 (June 21 – 27, 2026) of the Perseverance rover mission on Mars.
Posted inExoplanets, -moons, -comets
Nautilus Space Observatory: The Evolution of Planets and their Atmospheres
[astro-ph.IM] We are just beginning to explore the billion-year evolution from nascent planets in disks to mature planetary systems. Recent discoveries hint at demographic and atmospheric differences between young planets […]
Posted inExoplanets, -moons, -comets
The GAPS Programme at TNG LXXIV. A Reanalysis Of The Planetary Systems TOI-1272 And TOI-1694 With HARPS-N And Retraction Of The Planetary Interpretation Of TOI-1272 c
[astro-ph.EP] Hot Neptunes are close-in exoplanets that occupy a sparsely populated region of parameter space known as the “hot-Neptune desert”.
Posted inUncategorized
Perseverance Astrobiology Droid Has Completed A Martian Marathon
[NASA] On June 14, 2026, Mars Perseverance rover completed a Martian “marathon” by surpassing 26.2 miles (42.195 kilometers) of travel. The day before, NASA’s Mars Reconnaissance Orbiter snapped this view […]