View Of Distant, Faint Galaxies Reveals
Young Galaxy Building Blocks
Embedded in this Hubble Space Telescope image of nearby and distant galaxies are 18 young galaxies or galactic building blocks, each containing dust, gas, and a few billion stars. Each of these objects is 11 billion light-years from Earth and much smaller than today's galaxies. They are located in a small region of sky in the northern part of the constellation Hercules, near the border of Draco.
Astronomers believe that many of these objects have collided and merged with each other over time to grow into the giant and luminous galaxies seen around us today.