Piecing together 10 years of Hubble Space Telescope images, astronomers have unveiled the deepest view yet of a small sliver of the night sky, revealing a kaleidoscope of galaxies and other celestial objects.

The Hubble eXtreme Deep Field, or XDF, adds 5,500 galaxies to Hubble’s 2003 and 2004 view into a tiny patch of the farthest universe.

Hubble returned to the same target more than 50 times over the past decade, racking up two million additional seconds of exposure time.

The most distant objects found date back to about 500 million years after the universe’s formation some 13.7 billion years ago.

The early universe was a violent place, with colliding and merging galaxies that radiated in bright blue light, a sign of new star formation.

The Hubble portrait also shows brilliantly-shining spiral galaxies and older red fuzzy galaxies whose star-formation days are over.

More than 2,000 images of the same field were combined to form the XDF.

“XDF is the deepest image of the sky ever obtained,” said astronomer Garth Illingworth.