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 […]
Hubble
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 […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Early Release Science Of The Exoplanet WASP-39b With JWST NIRSpec PRISM
Transmission spectroscopy of exoplanets has revealed signatures of water vapor, aerosols, and alkali metals in a few dozen exoplanet atmospheres.
Posted inAriel Mission, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Exploring the Ability of HST WFC3 G141 to Uncover Trends in Populations of Exoplanet Atmospheres Through a Homogeneous Transmission Survey of 70 Gaseous Planets
We present the analysis of the atmospheres of 70 gaseous extrasolar planets via transit spectroscopy with Hubble’s Wide Field Camera 3 (WFC3).
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Hubble WFC3 Spectroscopy of the Rocky Planet L 98-59 b: No Evidence for a Cloud-Free Primordial Atmosphere
We are using archived data from HST of transiting exoplanet L~98-59~b to place constraints on its potentially hot atmosphere.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
A Transmission Spectrum Of The Sub-Earth Planet L98-59~b In 1.1-1.7 μm
With the increasing number of planets discovered by TESS, the atmospheric characterization of small exoplanets is accelerating. L98-59 is a M-dwarf hosting a multi-planet system, and so far, four small […]
Posted inBiosignatures & Paleobiology, Press Release
The Hubble Space Telescope's Near-UV And Optical Transmission Spectrum Of Earth As An Exoplanet
We observed the 2019 January total lunar eclipse with the Hubble Space Telescope’s STIS spectrograph to obtain the first near-UV (1700-3200 Å) observation of Earth as a transiting exoplanet. The […]
Posted inAlpha Centauri, Biosignatures & Paleobiology, Brown Dwarfs, Epsilon Eridani, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Proxima Centauri, tau Ceti, TRAPPIST-1
Goldilocks Stars Are Best Places to Look for Life
In the search for life beyond Earth, astronomers look for planets in a star’s “habitable zone” — sometimes nicknamed the “Goldilocks zone” — where temperatures are just right for liquid […]
Posted inExoplanets, -moons, -comets, Press Release
Hubble Search for Transit of the Earth-mass Exoplanet Alpha Centauri Bb
Results from exoplanet surveys indicate that small planets (super-Earth size and below) are abundant in our Galaxy. However, little is known about their interiors and atmospheres. There is therefore a […]
Posted inHabitable Zones, Icy Worlds, Press Release
NASA To Discuss Hubble Observations of Ganymede
NASA will host a teleconference at 11 a.m. EDT on Thursday, March 12, to discuss Hubble Space Telescope’s observations of Ganymede, Jupiter’s largest moon. These results will help scientists in […]