Polycyclic aromatic hydrocarbons (PAHs) are small molecules consisting of rings of carbons, ubiquitous in the interstellar medium. However, PAHs do not seem to be present in protoplanetary disks around the youngest stars. Today’s paper tries to understand why that is.
When we don’t have spectra, we can estimate the distance to a quasar by calculating its photometric redshift. Today’s authors present a new way to use the ‘flickering’ of quasars to improve these distance estimates.
How do you produce ultra-high-energy neutrinos like KM3-230213A? Guest author Domenik Ehlert explains how cosmic rays may be behind it!
The Infinity Galaxy might be home to a newborn supermassive black hole that formed directly from a gas cloud instead of a star. Could this help reveal how these objects formed in the early universe?
JWST liked it so much it put two rings on it: a pair of dying stars dance at the heart of this spectacular nebula that is enriching the Galaxy.
JWST’s discovery of free-floating binary planetary-mass objects came as quite a surprise and tests theories of planet formation. Today’s paper investigates whether dynamical encounters in dense star-forming regions could destroy such binary systems.