Images attached to multiple posts and pages

Hello!

I was wondering if it is possible to attach several images, and display them as [gallery], to more than one post/page, whitout re-upload them.
I have this site [www.arthurmustafa.com] and in “Fotografie” section I have made a photo gallery from WordPress pages. When I post a new article on my blog section I want also to post images attached to it to a new page in my photo gallery. I don`t want to upload twice the same images but i want to “re-use” them, in the same [gallery] format.

Please tell me if it is possible such thing.

Thank you.
Arthur Mustafa