All images on our site are the highest resolution available from original, untouched, sources. With astronomical images, background sensor noise is minimized to produce a more pleasing black. Slight adjustments to contract and saturation are sometimes applied.
In no case have we added or manufactured data to an image to "improve". All images (unless artists' renderings) are real, and are derived from original observatory data sets.
All of our Media options (canvas, metal, premium, fine art) are equally capable of producing high resolution printed images. There is no image quality loss related to Media choices.
All of our Media is Certified Archival with greater than 100 year color fast life. Our Fine Art prints, in addition, are Museum grade, without lignins or artificial brighteners.