http://news.bbc.co.uk/2/hi/science/nature/8022917.stm
The cataclysmic explosion of a giant star early in the history of the Universe is the
most distant single object ever detected by telescopes.
The colossal blast was picked up first by Nasa's Swift space observatory which is tuned to see the high-energy gamma-rays emitted from extreme events. Other telescopes then followed up the signal, confirming the source to be more than
13 billion light-years away...
Also
http://en.wikipedia.org/wiki/GRB_090423
And
http://gcn.gsfc.nasa.gov/gcn3/9198.gcn3
RA(J2000) = 09h 55m 35s Dec(J2000) = +18d 09' 37"
Also at
http://antwrp.gsfc.nasa.gov/apod/ap090429.html