The Age of Our Universe

The Hubble Space Telescope, 600 miullion years after the Big Bang, has taken the "most complete picture of the early univers so far, showing galaxies with stars that are already hundreds of millions of years old." The reason for these younger galaxies being the color blue, is because the don't have the high heavy metal content that mature galaxies have.

Here is a website for some other pictures that the Hubble Space Telescope has taken (link)