Excluding the low-surface-brightness outskirts of low-mass galaxies due to surface-brightness detection limits leads to overestimates of central dark matter densities and virial masses.
Sixty-four new irregular moons of Saturn have been discovered, and analysis of all 122 irregular moons supports the theory that the Mundilfari subgroup was formed by a collision less than 100 million years ago.
Simulated Population III star relics residing in the Milky Way formed from z = 22 to z = 4 and make up about 1 in every 50,000 stars, with the galactic halo hosting the largest fraction of this population.
Archaeology and astronomy combine in this study of the earliest datable account of a solar eclipse, which took place in Qūfù and includes a report of a yellowish structure that is likely the solar K-corona.
The inward gas flow in protoplanetary disks can cause dust to tumble into a planet-induced gap, potentially significantly impacting pebble drift and planet formation in the inner disk.
The magnetic complexity of a solar active region appears to influence the solar wind magnetic field strength, charge state, helium abundance, and other factors; complex active regions excel at generating solar wind.