Figure 23-35: R I V U X G
The Building Blocks of Galaxies In this Hubble Space Telescope image, the objects outlined by circles are about 13 billion ly from Earth and only a fraction of the size of our Milky Way. They are the building blocks that merge to form larger galaxies and clusters. While barely visible, these are the brightest objects at this great distance and early time, and numerous objects even smaller and dimmer are expected.
The Building Blocks of Galaxies In this Hubble Space Telescope image, the objects outlined by circles are about 13 billion ly from Earth and only a fraction of the size of our Milky Way. They are the building blocks that merge to form larger galaxies and clusters. While barely visible, these are the brightest objects at this great distance and early time, and numerous objects even smaller and dimmer are expected.
(NASA, ESA, M. Trenti (University of Colorado, Boulder, and Institute of Astronomy, University of Cambridge, UK), L. Bradley (STScI), and the BoRG team)