[alocky (Andrew lockwood)]

I often get asked this by non-astronomy friends, and until now have been unsure how to answer them.
Last night I was playing with two nights worth of data on the M77 region, and used the aladin server to identify some of the pinpricks of light. One of them is a quasar with a redshift of 0.67. Using a simple cosmological model gives a Hubble distance of 2474Mpc, or 8.068 billion light years, about half the age of the universe. That's my new answer!
Cheers
Andrew.