A new framework allows researchers to determine the small fraction of polycyclic aromatic hydrocarbons (sooty molecules mostly made up of rings of carbon atoms) that are composed of carbon chains rather than rings.
New simulations focus on how the radiation from a ripped-apart star affects the momentum and energy of the gas, influencing the emission seen during a tidal disruption event leading up to its peak.
Researchers report on the causes of chromospheric grains, which are brief, periodic, tiny brightenings of the solar chromosphere seen in emission from calcium atoms.
The famous Pillars of Creation are short-lived, astronomically speaking, with a new study estimating that they will disperse in just 1-2 million years.
The heat flux measured via a tectonic structure on the largest moon of Uranus can be explained by radiogenic heating if the region is ancient, but if it’s young, another source of heat is required.
Two- and three-dimensional simulations illuminate the ignition and spreading of flames during an X-ray burst, when gas accreted onto the surface of a neutron star explodes.