A quarter of a century ago, philosopher Judith called upon society to create “gender trouble”
by disrupting the binary view of sex, gender, and sexuality. She argued that gender, rather …

An observational review is provided of the properties of accretion disks around young stars.
It concerns the primordial disks of intermediate-and high-mass young stellar objects in …

We analyse the first giant molecular cloud (GMC) simulation to follow the formation of
individual stars and their feedback from jets, radiation, winds, and supernovae, using the …

The enormous radiative and mechanical luminosities of massive stars impact a vast range of
scales and processes, from the reionization of the universe, to the evolution of galaxies, to …

One of the key mysteries of star formation is the origin of the stellar initial mass function
(IMF). The IMF is observed to be nearly universal in the Milky Way and its satellites, and …

The formation of stars above about 20 M⊙ and their apparently high multiplicity remain
heavily debated subjects in astrophysics. We have performed a vast high-resolution radial …

We present coupled stellar evolution (SE) and 3D radiation-hydrodynamic (RHD)
simulations of the evolution of primordial protostars, their immediate environment, and the …

The first stars fundamentally transformed the early universe by emitting the first light and by
producing the first heavy elements. These effects were predetermined by the mass …

We present the Red MSX Source survey, the largest statistically selected catalog of young
massive protostars and H ii regions to date. We outline the construction of the catalog using …

Recent observations suggest an that intensive molecular cloud collision can trigger massive
star/cluster formation. The most important physical process caused by the collision is a …