Description: the Hubble Ultra Deep Field (HUDF), the deepest image of the universe ever taken in visible light. Pictured above, the HUDF shows a sampling of the oldest galaxies ever seen, galaxies that formed just after the dark ages, 13 billion years ago, when the universe was only 5 percent of its present age.
	Our universe is at least 78 billion light years radius or 156 billion light years across, minimum.
	The Hubble Ultra Deep Field
	Image Source: NASA (public domain)
	http://antwrp.gsfc.nasa.gov/apod/ap040309.html