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.
Stellar collision triggers supernova explosion
This is the first time scientists have actually seen such an event.
Dark Energy Camera captures spectacular view of galaxy Centaurus A
Dark Energy Camera captures a detailed view of a striking peculiar galaxy.
Seeing Quintuple: Hubble captured the image of Einstein ring
This rare phenomenon is caused by the presence of two galaxies in the foreground that act as a lens.
A galaxy in a ‘Furnace’
NGC 1385 is a member of the NGC 1385 group, a gathering of over 30 galaxies.
One of the Milky Way’s arms has a break
The newly discovered feature offers insight into the large-scale structure of our galaxy.
Two dancing ghosts discovered about a billion light-years away
Point to new discoveries in the cosmos.
Most-detailed radio image of Andromeda galaxy to date
‘Disk of the galaxy’ is identified as a region where new stars are born.
Astronomers see the black hole jets from the nearest radio galaxy
The dark heart of the nearest radio galaxy.