Images From Ls Magazine Is There Any Good Way To Remove Scan Lines For A Multiple-page Spread?

Is there any good way to remove scan lines for a multiple-page spread? - images from ls magazine

I registered scan and clean the objects and (2 pages) pictures from magazines on the computer. For photos, there is nothing I can do to minimize the lines of the page images of the exploration of several sites?

I have to work Photoshop Elements 4.0 and PowerPoint. I am scanning images of the moon and stars above (this is the LPDB for lunarcc.org 's) so that the lines on the side stand out really.