Previous studies of the exoplanet LTT 1445Ac concluded that the light curve from the Transiting Exoplanet Survey Satellite (TESS) was consistent with both grazing and non-grazing geometries. As a result, […]
Terrestrial Planet
Posted inExoplanets, -moons, -comets, Habitable Zones, Status Report
The Origin Of The Terrestrial Planets
Three major planets, Venus, Earth, and Mercury formed out of the solar nebula. A fourth planetesimal, Theia, also formed near Earth where it collided in a giant impact, rebounding as […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Predicting the Yield of Small Transiting Exoplanets around Mid-M and Ultra-Cool Dwarfs in the Nancy Grace Roman Space Telescope Galactic Bulge Time Domain Survey
We simulate the yield of small (0.5-4.0 R⊕) transiting exoplanets around single mid-M and ultra-cool dwarfs (UCDs) in the Nancy Grace Roman Space Telescope Galactic Bulge Time Domain Survey.
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
The Planet That Could End Life On Earth
A terrestrial planet hovering between Mars and Jupiter would be able to push Earth out of the solar system and wipe out life on this planet, according to a UC […]
Posted inExoplanets, -moons, -comets, Status Report
Terrestrial Planet Formation From A Ring
It has been long proposed that, if all the terrestrial planets form within a tiny ring of solid material at around 1 AU, the concentrated mass-distance distribution of the current […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Venus
The Demographics Of Terrestrial Planets In The Venus Zone
Understanding the physical characteristics of Venus, including its atmosphere, interior, and its evolutionary pathway with respect to Earth, remains a vital component for terrestrial planet evolution models and the emergence […]
Posted inAstrochemistry, Astrogeology, Exoplanets, -moons, -comets, Status Report
Takeout And Delivery: Erasing The Dusty Signature Of Late-stage Terrestrial Planet Formation
The formation of planets like Earth is expected to conclude with a series of late-stage giant impacts that generate warm dusty debris, the most anticipated visible signpost of terrestrial planet […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
In Search of the Edge: A Bayesian Exploration of the Detectability of Red Edges in Exoplanet Reflection Spectra
Reflection spectroscopy holds great promise for characterizing the atmospheres and surfaces of potentially habitable terrestrial exoplanets.
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release
A New Method for Finding Nearby White Dwarf Exoplanets and Detecting Biosignatures
We demonstrate that the James Webb Space Telescope (JWST) can detect infrared (IR) excess from the blended light spectral energy distribution of spatially unresolved terrestrial exoplanets orbiting nearby white dwarfs.
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release
Two Temperate Super-Earths Transiting A Nearby Late-type M Dwarf
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 […]