Turned out that all the news announcements on this has crashed the Cambridge's website due to the overwhelming request to want to see this! :)
In honor of Open Access Week, the University of Cambridge on Monday put the 1966 PhD thesis, "Properties of Expanding Universes," on its open access repository. Shortly after it went live, requests to view the research crashed the website.As of Monday afternoon, the main research page was reachable after several minutes, but nothing on the page was.
So if you are planning on checking it out, good luck!