Galaxies

Deep-Sky Objects, Galaxies

The Ursa Major Moving Cluster, elliptical galaxy M105, and the Little Pinwheel Galaxy (NGC 3184)

Galaxies

Second strongest shock wave found in merging galaxy clusters

Galaxies, Stars

Two Cancer double stars, spiral galaxy NGC 2841, and spiral galaxy NGC 3169

Galaxies, Milky Way

The Milky Way and Andromeda galaxies are approaching each other. With current technology, how long would it take before we could directly measure the apparent increase in size of Andromeda?

Deep-Sky Objects, Galaxies

The Eta Carinae Nebula, spiral galaxy M95, and the Gamma Leonis Group

Deep-Sky Objects, Galaxies

The Southern Pleiades, the Ghost of Jupiter, and dwarf spheroidal galaxy Leo I

Cosmology, Galaxies

Dwarf dark galaxy hidden in ALMA gravitational lens image

Galaxies

Four spiral galaxies in Leo

Exotic Objects, Galaxies

Behemoth black hole found in an unlikely place

Exotic Objects, Galaxies

Gravitational wave search provides insights into galaxy evolution and mergers

Galaxies

Fast radio burst “afterglow” was actually a flickering black hole

Exotic Objects, Galaxies, Milky Way

Andromeda’s first spinning neutron star has been found