In the age of JWST, temperate terrestrial exoplanets transiting nearby late-type M dwarfs provide unique opportunities for characterising their atmospheres, as well as searching for biosignature gases. We report here […]
astro-ph.EP
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Venus
Hot Earth Or Young Venus? A Nearby Transiting Rocky Planet Mystery
Venus and Earth provide an astonishingly different view of the evolution of a rocky planet, raising the question of why these two rocky worlds evolved so differently. The recently discovered […]
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, TRAPPIST-1
High-Resolution Spectral Models Of TRAPPIST-1e Seen As A Pale Blue Dot For ELT And JWST Observations
Rocky exoplanets orbiting in the habitable zone (HZ) of nearby M dwarfs provide unique opportunities for characterizing their atmospheres and searching for biosignature gases. TRAPPIST-1e, a temperate Earth-sized exoplanet in […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
Life On Exoplanets In The Habitable Zone Of M-Dwarfs?
Exoplanets orbiting in the habitable zone around M-dwarf stars have been prime targets in the search for life due to the long lifetimes of the host star, the prominence of […]
Posted inGanymede, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Press Release
Global Modelling of Ganymede’s Surface Composition: Near-IR Mapping from VLT/SPHERE
We present maps of Ganymede’s surface composition with almost complete longitude coverage, acquired using high spatial resolution near-infrared (0.95 to 1.65μm) observations from the ground-based VLT/SPHERE instrument. Observed reflectance spectra […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release
Photobombing Earth 2.0: Diffraction Limit Related Contamination and Uncertainty in Habitable Planet Spectra
Observing habitable exoplanets that may resemble Earth is a key priority in astronomy that is dependent on not only detecting such worlds, but also ascertaining that apparent signatures of habitability […]
Posted inBiosignatures & Paleobiology, Imaging & Spectroscopy, Plant Biology, Press Release
Linking Common Multispectral Vegetation Indices to Hyperspectral Mixture Models
For decades, agronomists have used remote sensing to monitor key crop parameters like biomass, fractional cover, and plant health. Vegetation indices (VIs) are popular for this purpose, primarily leveraging the […]
Posted inEnceladus, Icy Worlds, Press Release
A Mushy Source For The Geysers Of Enceladus
Enceladus is a primary target for astrobiology due to the salty plume ejecta measured by the Cassini spacecraft and the inferred subsurface ocean sustained by tidal heating. Sourcing the plumes […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Characterization Of Exoplanetary Atmospheres With SLOPpy
Transmission spectroscopy is among the most fruitful techniques to infer the main opacity sources present in the upper atmosphere of a transiting planet and to constrain the composition of the […]
Posted inAstrochemistry, Europa, Icy Worlds, Imaging & Spectroscopy, Missions & Hardware, Press Release
Constraining Europa’s Subsolar Atmosphere With A Joint Analysis Of HST Spectral Images And Galileo Magnetic Field Data
We constrain Europa’s tenuous atmosphere on the subsolar hemisphere by combining two sets of observations: oxygen emissions at 1304 Å and 1356 Å from Hubble Space Telescope (HST) spectral images, […]