MHD waves – slow, Alfvén and fast – lose their distinctiveness in certain regions of a stratified plasma, such as solar or stellar atmospheres. We discuss all...

Massive stars play a vital role in shaping the cosmic matter cycle and driving galaxy evolution, chemically enriching their host galaxy through their powerful...

In the last years, ground-based and space observations are bringing a wealth of constraints on the chemical composition of exoplanet atmospheres. Chemical...

Globular clusters (GCs) are fascinating objects nearly as old as the Universe that provide insight on a large variety of astrophysical and cosmological...

The discovery of dark matter (DM) followed cosmic gravitational observation (Zwicky, 1933), which remains inconsistent within known physics. Solar system...

Relativistic jets are amongst the most important and powerful phenomena in astrophysics, and yet also amongst the least understood. Most well known in the...

The remarkable success of recent cosmology in pinpointing a consistent concordance model relies on several foundational assumptions, including homogeneity...

Dwarf spheroidal galaxies (dSphs) are the most dark matter (DM)–dominated galaxies in the Universe, and as such, they provide excellent targets for testing a...