The legacy of NASA’s K2 mission has provided hundreds of transiting exoplanets that can be revisited by new and future facilities for further characterization, with a particular focus on studying […]
extrasolar
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Dust From collisions: A Way To Probe The Composition Of Exo-planets?
In order to link infrared observations of dust formed during planet formation in debris disks to mid-infrared spectroscopic data of planetary materials from differentiated terrestrial and asteroidal bodies, we obtained […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Press Release, TRAPPIST-1
The Search for Habitable, Earth-Sized Planets around SPECULOOS-2
In a new paper, NASA-supported scientists have predicted that there is an Earth-sized planet in the habitable zone of the star SPECULOOS-2.
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
Analytic Frozen Orbits Under The Zonal Harmonics Perturbation From An Earth-like Planet
This work focuses on providing closed form analytical expressions to define frozen orbits under the effects of the zonal harmonics of an Earth-like planet.
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Hubble WFC3 Spectroscopy of the Terrestrial Planets L~98-59~c \& d: No Evidence for a Clear Hydrogen Dominated Primary Atmosphere
The nearby bright M-dwarf star L~98-59 has three terrestrial-sized planets. One challenge remaining in characterizing atmospheres around such planets is that it is not known a priori whether they possess […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
High-Resolution Transmission Spectroscopy of the Terrestrial Exoplanet GJ 486b
Terrestrial exoplanets orbiting M-dwarf stars are promising targets for transmission spectroscopy with existing or near-future instrumentation.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Press Release
Evidence For The Volatile-rich Composition Of O 1.5-R⊕ Planet
The population of planets smaller than approximately 1.7 R⊕ is widely interpreted as consisting of rocky worlds, generally referred to as super-Earths.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
ESPRESSO and CARMENES Discover Two Potentially Habitable Exo-Earths Around A Star Near The Sun
“Nature seems bent on showing us that Earth-like planets are very common. With these two we now know 7 in planetary systems quite near to the Sun” explains Alejandro Suárez […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
TrExoLiSTS: Transiting Exoplanets List of Space Telescope Spectroscopy
We present the STScI WFC3 project webpage, Transiting Exoplanets List of Space Telescope Spectroscopy, TrExoLiSTS. It tabulates existing observations of transiting exoplanet atmospheres, available in the MAST archive made with […]
Posted inAstronomy & Telescopes, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Water/Hycean Worlds & Oceanography
Two Exoplanets May Be Mostly Water, NASA’s Hubble and Spitzer Find
A team led by of researchers at the University of Montreal has found evidence that two exoplanets orbiting a red dwarf star are “water worlds,” where water makes up a […]