Also does anyone know if Peart ever did a solo album.

No. He wrote a book, and has done lots of other side projects involving other people (like the Burning for Buddy project), but did not make a genuine "solo" album that I know of.

After he lost Jackie and Selena a few years back, he essentially did nothing for quite a while. I heard that he's "all better now" and he's re-married, and that Rush was supposed to be working on a new album together last year. But nothing since then.