Tag: #exoplanets

Preprint: JWST spectra suggest carbon disulfide in atmosphere of young exoplanet V1298 Tau e

A new arXiv preprint reports JWST detected carbon disulfide (CS2) in the atmosphere of young exoplanet V1298 Tau e — a result under review that needs confirmation.

#exoplanets, #jwst, #astronomy, #sulfur

NASA Says Roman Telescope Could Detect Around 100,000 Exoplanets

NASA projects its Nancy Grace Roman Space Telescope could detect about 100,000 exoplanets via transits and 1,000+ more by microlensing.

#astronomy, #exoplanets, #nasa, #space-telescope

Preprint: JWST spectra of K2-18b still consistent with Hycean ocean‑world models

A May 18 arXiv preprint finds JWST transmission spectra of K2-18b can be reproduced by self-consistent Hycean (H2‑rich ocean) atmosphere models without invoking DMS.

#exoplanets, #jwst, #hycean, #k2-18b

JWST Mid‑Infrared Spectrum Indicates Basaltic Surface, Little Atmosphere on Rocky Exoplanet LHS 3844 b

JWST mid-infrared observations of LHS 3844 b point to a dark, low-silica (basaltic) surface and rule out a thick CO2 or SO2 atmosphere.

#astronomy, #exoplanets, #jwst, #surfacecomposition

Astronomers confirm second newborn giant planet in ringed WISPIT 2 system

Interferometer data confirm a second forming gas giant around young sunlike star WISPIT 2, offering a rare view of how solar systems take shape.

#exoplanets, #astronomy, #planetformation, #eso, #vlt

Astronomers Spot Likely Giant Impact as Distant Star’s Light ‘Goes Bonkers’

A University of Washington team says unusual dimming and an infrared surge in a young star point to a rare, Moon-like planetary collision.

#astronomy, #exoplanets, #gaia, #planetaryscience, #space

Oven-Hot Exoplanet Near ‘Radius Valley’ Shows How Stars Strip Worlds Bare

TOI-5734 b is a dense, Neptune-size world losing its atmosphere under fierce radiation—an ideal test case for models of planetary erosion.

#exoplanets, #astronomy, #tess, #jwst, #planetaryscience