![The telescope flying in formation with the starshade. The telescope can detect and characterize exoplanets viewable near or beyond the angular radius of the starshade as seen from the telescope, which defines the inner working angle (IWA). Figure adopted from the Habex final report [9].-- [astro-ph.IM]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Propulsion.jpg?resize=1200%2C720&ssl=1)
[astro-ph.IM] We assess how propulsion and operational constraints affect exo-Earth characterization with a starshade rendezvous mission for a Habitable Worlds Observatory (HWO)-like telescope at Sun-Earth L2.
exoplant
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Ice Giant, Icy Worlds, Imaging & Spectroscopy, Status Report
Requirements For Joint Orbital Characterization of Cold Giants and Habitable Worlds with Habitable Worlds Observatory
We determine optimal requirements for the joint detection of habitable-zone planets and cold giant planets with the Habitable Worlds Observatory (HWO).
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Status Report
Free-floating Planetary Mass Objects In LDN 1495 From Euclid Early Release Observations
Context. Substellar objects, including brown dwarfs and free-floating planetary-mass objects, are a significant product of star formation.
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report
JWST-TST DREAMS: A Precise Water Abundance for Hot Jupiter WASP-17b from the NIRISS SOSS Transmission Spectrum
Water has proven to be ubiquitously detected in near-infrared (NIR) transmission spectroscopy observations of hot Jupiter atmospheres, including WASP-17b.