Google have released a new direct answer query function in its algorithm, showing WHOIS data when requested. Some users state they cannot see it, while others are seeing it non stop. This will be because Google are trialling the service for a little while before its release.
To test if it works for you, type in ‘whois domain.com’ and it should show the registrant details along with expiry dates.
Currently it appears not to be working for AU domains, but only for .com’s.