Galaxy
A galaxy is any of the systems of stars and interstellar matter that make up the universe. A galaxy is composed of stars, stellar remnants, interstellar gas, dust, and dark matter that are all held together by gravity.
Nature has provided an immensely varied array of galaxies, ranging from faint, diffuse dwarf objects to brilliant spiral-shaped giants.
Rethinking galactic origins: Heavy-element mapping challenges conventional theory
Challenging a 20-year-old theory.
Scientists unprecedentedly detailed observations of one of the earliest known galaxies
Growth in the early Universe was much faster than first thought.
NASA’s Webb peers into the Tendrils of NGC 604
Webb unveils the intricacies of the formation of stars and the chaotic environments.
Webb discovers enigmatic galaxy hosting distant supermassive black hole
Looking deeply into space and time
Heaviest black hole pair ever found
This massive pair gives clues as to why such an event seems so unlikely in the Universe.
New clues about mysterious deep space signals
Researchers zoom in on a dead star’s erratic behavior.
Black holes or galaxies? Which came first?
The findings 'completely shake up' what we know about galaxy formation.