We present the first analysis of JWST near-infrared spectroscopy of stellar flares from TRAPPIST-1 during transits of rocky exoplanets. Four flares were observed from 0.6–2.8 μm with NIRISS and 0.6–3.5 […]
TESS
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Status Report
GJ 357 d: Potentially Habitable World or Agent of Chaos?
Multi-planet systems provide important laboratories for exploring dynamical interactions within the range of known exoplanetary system architectures.
Posted inAstrogeology, Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus
Investigating The Ability Of JWST To Identify Discerning Features In exoEarth And exoVenus Transmission Spectra
The success of the Transiting Exoplanet Survey Satellite (TESS) mission has led to the discovery of an abundance of Venus Zone (VZ) terrestrial planets that orbit relatively bright host stars.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Using Photometrically-Derived Properties of Young Stars to Refine TESS’s Transiting Young Planet Survey Completeness
The demographics of young exoplanets can shed light onto their formation and evolution processes. Exoplanet properties are derived from the properties of their host stars.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Refining The Properties Of The TOI-178 System With CHEOPS And TESS
The TOI-178 system consists of a nearby late K-dwarf transited by six planets in the super-Earth to mini-Neptune regime, with orbital periods between 1.9 and 20.7 days.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Identification Of The Top TESS Objects Of Interest For Atmospheric Characterization Of Transiting Exoplanets With JWST
JWST has ushered in an era of unprecedented ability to characterize exoplanetary atmospheres. While there are over 5,000 confirmed planets, more than 4,000 TESS planet candidates are still unconfirmed and […]
Posted inAstronomy & Telescopes, SETI & Technosignatures, Status Report
A Search For Technosignatures Around 11,680 Stars With The Green Bank Telescope At 1.15-1.73 GHz
We conducted a search for narrowband radio signals over four observing sessions in 2020-2023 with the L-band receiver (1.15-1.73 GHz) of the 100 m diameter Green Bank Telescope.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
TCF Periodogram’s High Sensitivity: A Method For Optimizing Detection Of Small Transiting Planets
We conduct a methodological study for statistically comparing the sensitivities of two periodograms for weak signal planet detection in transit surveys: the widely used Box-Least Squares (BLS) algorithm following light […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Space Weather & Heliophysics
A Young Super-Earth Orbiting Red Dwarf AU Microscopii Is Evaporating
A young planet whirling around a petulant red dwarf star is changing in unpredictable ways orbit-by-orbit. It is so close to its parent star that it experiences a consistent, torrential […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report
A 1.55 R⊕ Habitable-zone Planet Hosted By TOI-715, An M4 Star Near The Ecliptic South Pole
A new generation of observatories is enabling detailed study of exoplanetary atmospheres and the diversity of alien climates, allowing us to seek evidence for extraterrestrial biological and geological processes.