Only to remove trash and enhance....
Photoshop has some useful tools similar to what one would use in remote sensing analysis. Nothing wrong with Photoshop. The astro images start life as digital computer files whether in your little digital camera, your CCD telescope like this one, your Earthsat, or Hubble. All the same. Turn the Hubble toward earth and the same set of gear will spot mineralized deposits when the data is processed with an intent of remote sensing. It could probably pick out a single tree.