The point, Nick, is that the images could be combined to the point at which the spherules would be visible - if the spherules exist at these locations.

Without the enhanced images, all sorts of miserable hypothesis are presented as fact: the spherules only exist at the one site, and they are the result of water based processes. Without the data, it can not be shown that the spherules are Martian tektites present everywhere on Mars and just vivsible at the one site due to a lack of covering dust.

Each Viking cost around $1,000,000,000 in 1960's dollars, and Pathfinder came in probably gross cost around $500,000,000. Not spending the small amount of money needed to combine the returned images to get the detail is just plain bad science.

ep