Tag: #jwst

JWST data suggest powerful galactic wind 300 million years after the Big Bang

JWST spectra show extended CIII] around a z≈14 galaxy, implying strong, metal‑rich outflows moved gas 300 million years after the Big Bang.

#astronomy, #jwst, #galaxies, #cosmicdawn

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

James Webb Telescope Watches Baby Star Forge Crystals and Blow Them Toward Comet Zones

Webb tracked a young star’s outbursts as they turned dust into crystalline minerals and lofted them outward—explaining crystals found in icy comets.

#jwst, #astronomy, #protostars, #comets, #planetformation

‘Cotton-candy’ planets around young star offer rare glimpse of how worlds shrink with age

Four ultra-puffy planets orbiting 20-million-year-old V1298 Tau reveal how newborn worlds lose atmospheres and contract into common super-Earths.

#exoplanets, #astronomy, #nasa, #planetformation, #jwst