Terrestrial exoplanets such as TRAPPIST-1e will be observed in a new capacity with JWST/NIRSpec, which is expected to be able to detect CO2, CH4, and O2 signals, if present, with […]
TRAPPIST-1
Posted inAlpha Centauri, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Proxima Centauri, Space Weather & Heliophysics, TRAPPIST-1
Stellar Space Weather Effects On Potentially Habitable Planets
Stellar activity can reveal itself in the form of radiation (eg, enhanced X-ray coronal emission, flares) and particles (eg, winds, coronal mass ejections). Together, these phenomena shape the space weather […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, TRAPPIST-1
Measuring The Obliquities Of The TRAPPIST-1 Planets With MAROON-X
A star’s obliquity with respect to its planetary system can provide us with insight into the system’s formation and evolution, as well as hinting at the presence of additional objects […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Press Release, Proxima Centauri, TRAPPIST-1, Water/Hycean Worlds & Oceanography
Traveling Planetary-scale Waves Cause Cloud Variability On Tidally Locked Aquaplanets
Cloud cover at the planetary limb of water-rich Earth-like planets is likely to weaken chemical signatures in transmission spectra, impeding attempts to characterize these atmospheres.
Posted inAstrogeology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics, TRAPPIST-1
Interior Heating Of Rocky Exoplanets From Stellar Flares With Application To TRAPPIST-1
Many stars of different spectral types with planets in the habitable zone are known to emit flares.
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics, TRAPPIST-1
Extending Optical Flare Models to the UV: Results from Comparing of TESS and GALEX Flare Observations For M Dwarfs
The ultraviolet (UV) emission of stellar flares may have a pivotal role in the habitability of rocky exoplanets around low-mass stars.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, TRAPPIST-1
A Discovery That Could Dramatically Narrow The Search For Extraterrestrial Life
An Earth-like planet orbiting an M dwarf — the most common type of star in the universe — appears to have no atmosphere at all. This discovery could cause a […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics, TRAPPIST-1
3D Modelling Of The Impact Of Stellar Activity On Tidally Locked Terrestrial Exoplanets: Atmospheric Composition And Habitability
Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet’s surface in large amounts […]
Posted inPress Release, Radiation, Space Weather & Heliophysics, TRAPPIST-1
Lower-than-expected Flare Temperatures For TRAPPIST-1
Although high energetic radiation from flares is a potential threat to exoplanet atmospheres and may lead to surface sterilization, it might also provide the extra energy for low-mass stars needed […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, TRAPPIST-1
Innovative System Evaluates Habitability Of Distant Planets
The climate crisis presents a huge challenge to all people on Earth. It has led many scientists to look for exo-planets, planets outside our solar system that humans could potentially […]