Star halfway across the universe was visible to naked eye for 30 secs on Wednesday

Those of you interested in astronomical things may enjoy http://www.badastronomy.com/

Wow, this is amazing. Anybody on HN happen to see it?

Halfway across the visible universe, not the entire universe, which is 90+ billion light years across. Sorry to nitpick. :)

It is impossible to know what is outside of our lightcone.