Dwarf galaxies such as NGC 4449 are small and faint systems with a few billion stars, often orbiting larger galaxies. Dominated by dark matter, they are vital for studying galaxy formation and the early universe. [NASA]

NGC 1316 is an Elliptical galaxy. Elliptical galaxies are oval-shaped and composed of old, red stars with minimal gas and dust. These galaxies form through mergers and are often found in galaxy cluster centers. [NASA]

Irregular galaxies like UGC 5829 are chaotic in appearance. They lack a defined shape, nuclear bulge, or spiral arms, and do not fit into the Hubble sequence, a classification scheme for galaxies published by Edwin Hubble in 1926. [NASA]

A Lenticular galaxy like the Cartwheel Galaxy is an intermediate type with a central bulge and disk, combining features of spiral and elliptical galaxies. These galaxies are also known as 'armless spiral galaxies'. [NASA]

A Ring galaxy like NGC 1291, seen here, is a rare structure with a central core encircled by a ring of stars, gas and dust, formed by galaxy collisions that spark star formation in the outer ring. [NASA]

NGC 3783 is a Seyfert galaxy. These galaxies feature bright cores powered by a supermassive black hole. These galaxies resemble spirals but emit intense radiation across the electromagnetic spectrum. [NASA]

Spiral galaxies like Messier 81 are disk-shaped with pinwheel-like arms. They are bright, and host active star formations fueled by stars, gas and dust. [NASA]