Highlights

A demonstration of Enhanced Halo Resolution

Understanding the CGM in the context of large scale environment

A novel analytic model for a galactic wind peppered with embedded cold clouds

Accretion mode may determine galaxy morphology.

The QuaStar Survey (Bish et al. 2021) pairs absorption-line measurements of quasars and galactic stars along similar lines of sight to constrain the contents of our galaxy's circumgalactic medium

A joint approach combining observations and simulations helps to distinguish inflowing filaments from outflowing clumps

Using synthetic spectroscopy to gain insight into the phase and kinematics of multiphase CGM gas

Searches for the galaxies associated with low-metallicity circumgalactic clouds reveal one population of clouds associated with galactic halos and another population that appears to be more distant from detectable galaxies

With MUSE we discovered a 120 kpc filament of [O II] emission connected to a turbulent 100 kpc nebula around a quasar at z~1

Exploring the diversity and complexity of CGM gas properties using a sample of galaxies from the TNG50 simulation

The strong correlation between atmospheric temperature and central black hole mass among massive galaxies is consistent with a linear relationship between black hole mass and the energy required to lift the atmosphere

How do turbulence and atomic cooling physics shape the circumgalactic medium and galaxy formation?

Our new work shows how better resolving the thermodynamics of galactic outflows boost their energetics, and thus their potential efficiency at regulating galaxy growth over cosmic time.

A serendipitous streak discovered in Hubble Space Telescope images might come from a runaway black hole hurtling through the atmosphere of a distant galaxy.

Announcing a new Annual Review of Astronomy & Astrophysics article about galactic atmospheres

Hubble observations of high-ionization absorption lines indicate that the Large Magellanic Cloud has extended halo gas at a temperature of several hundred thousand degrees