Hubble eXtreme Deep Field Straight Cut T-ShirtShine with the light of thousands of galaxies across billions of years of spacetime! This shirt is printed with the Hubble eXtreme Deep Field (HXDF) image, which contains over 5,500 galaxies, some seen as they were over 13 billion years ago, just half a million years after the Big Bang. The image was made using eight optical and infrared light filters and required about 22. 5 days of observing time. The area on the sky is much smaller than the Full