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Khabre desk
Recent reporting, analysis and explainers from the JWST desk.
science
An analysis of JWST and Spitzer spectra from 21 extreme debris disks found abundant tiny, thermally altered dust. The researchers interpret its mineral signatures as evidence of large collisions during planetary-system evolution.
science
A new set of cosmological radiation-hydrodynamic simulations shows that heavy black hole seeds of about a million solar masses form naturally in dense protocluster regions, undergo a super-Eddington accretion phase that reproduces the spectral features of little red dots, and then grow into the overmassive black holes observed by the James Webb Space Telescope.