I just did, though I cannot find anything about the kernel architecture

Date: Wed, 4 Jun 2014 20:47:46 -0700
From: alexander3223098@gmail.com
To: 9fans@9fans.net
Subject: Re: [9fans] What is Plan9 exactly?

On Jun 4, 2014 8:39 PM, "OMAR RADWAN" <owemeacent@live.com> wrote:
> I'm serious. I'm a Unix fan, I use BSD, Minix, Linux, and any unix-like OS I can get my hands on. Sadly, except, System V or HP-UX, or any UNIX. I read about Plan9 online, and it sounds like a great project. Though I do think that if this operating system if made to be better than Unix in every single way, it has to have a better kernel, which is something I am very interested about. What kind of kernel does it use? Why would anyone use it?
All of this is on the wiki. I'd take some time to sit down and explore for yourself.