Looking Back into Time With the XDF

Looking Back into Time With the XDF

About this image

This illustration separates the XDF into three planes showing foreground, background, and very far background galaxies. These divisions reflect different epochs in the evolving universe. Fully mature galaxies are in the foreground plane that shows galaxies as they looked less than 5 billion years ago. The universe is rich in evolving, nearly mature galaxies from 5 to 9 billion years ago. Beyond 9 billion years the universe is awash in compact galaxies and proto-galaxies, blazing with young stars.

Cosmology, Deep Fields, Distant Galaxies, Hubble Ultra Deep Field, Infographics, Survey


Illustration: NASA, ESA, and Z. Levay, F. Summers (STScI);
Science: NASA, ESA, G. Illingworth, D. Magee, and P. Oesch (University of California, Santa Cruz), R. Bouwens (Leiden University), and the HUDF09 Team