...Here’s a list of the images shown and their descriptions:
Among the first images to be sent back from Hubble after its launch in April 1990, this image of Saturn is good by the standards of ground-based telescopes, but slightly blurry. This is because of the well-publicized problem with Hubble’s mirror, which did not allow images to be focused properly...
...2011: Tarantula Nebula
Just published in April 2012, this image of the Tarantula Nebula combines a mosaic of Hubble observations, which capture the detail and structure of the nebula, with observations of glowing hydrogen and oxygen from the European Southern Observatory’s MPG/ESO 2.2-metre telescope in Chile, which provide color. The image is one of the most detailed ever made of a star-forming region, weighing in at an astonishing 330 megapixels.
Most of Hubble’s data are only made public a year after they are made, in order to give the team who designed the observations some time to study and publish their results. And it sometimes takes a few more years before the pictures get processed and released to the public. So what’s Hubble’s best picture from 2012? You’ll just have to wait to find out…