Everyone is familiar with the fabulous images produced by the Hubble Space Telescope, the orbiting observatory jointly operated by NASA and the European Space Agency that has been such a great ambassador for science.
Now the Hubble team are giving ordinary space enthusiasts the chance to produce their own great pictures from the vast collection of data in the telescope's archive.
Since it began observing in 1990, Hubble has made more than one million observations. It has captured the public imagination thanks to iconic photos such as the famous Pillars of Creation.
Those photos don't produce themselves. Imaging the sky is less straightforward than taking a snap with your pocket camera and experts spend some time tweaking and enhacing the raw data to bring you their "pretty pictures".
The space telescope team say there are thousands of pictures in the Hubble science archive that have never been seen by the general public. They call them Hubble's Hidden Treasures and they are challenging others to help give them the exposure they deserve.
Successful treasure hunters could win themselves an iPod Touch or even an iPad. And they don't need to be trained scientists to produce a winning image. Entries get published in a Flickr group.
To take part, you need to visit the space telescope website and from there access Hubble's vast science archive via a special web page, find a great dataset and then use the simple online tools to produce a great image.
For a greater challenge, you can download your chosen data and then use the same powerful open-source software that professionals use to produce your picture.
The classic Pillars of Creation image by Hubble. Credit: NASA/ESA
The Hubble website explains how to get involved in the competition and search for an image to process. It also recommends narrowing your hunt to the general purpose cameras carried by the telescope.
When you first call up the data, the task being set can seem daunting. But there is plenty of helpful advice on the Hubble site and, as the pictures they post themselves every week prove, the results can be simply stunning.