Concept: Galaxy
Why Are Some Optically Red Spirals Near-ultraviolet− r Blue?
How some red spiral galaxies retain star formation in their outer regions

Deep Chandra Observations of the z = 1.16 Relaxed, Cool-core Galaxy Cluster SPT-CL J2215-3537
X-ray observations of a rare relaxed galaxy cluster at very high redshift

RUBIES Spectroscopically Confirms the High Number Density of Quiescent Galaxies from 2 < z < 5
Early massive galaxies stopped forming stars more often than models predict

The Milky Way’s Circular Velocity Curve Measured Using Element Abundance Gradients
A new method uses stellar chemical patterns to map our galaxy's rotational speeds






