Caltech-Led Astronomers Find Most Primitive and Distant Galaxies (IMAGE)

California Institute of Technology

Caltech-Led Astronomers Find Most Primitive and Distant Galaxies

Caption

The colored squares in the main image outline the locations of the newly discovered galaxies. Enlarged views of each galaxy are shown in the black-and-white images. Each galaxy is labeled with the redshift (z), which measures how much a galaxy's ultraviolet and visible light has been stretched to infrared wavelengths by the universe's expansion. The galaxy observed at a redshift of 11.9 may be the distance-record breaker, seen as it appeared 380 million years after the Big Bang.

Credit

NASA/ESA/Caltech-R.Ellis/HUDF12 Team

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