I'm sorry, "Wow" is not strong enough. I think I'll go with "Wowie kazowie":
The light from A2744_YD4, as it is known, has been on its way to us for 13.2 billion years, since the universe was only 600 million years old.
Where the galaxy is “now” is only a mathematical extrapolation — about 30 billion light-years from here, according to the standard cosmological math. An international team led by Nicolas Laporte of University College London, using the Atacama Large Millimeter/submillimeter Array, or ALMA, a radio telescope in Chile, was able to see this galaxy only because its light had been amplified by the gravity of a massive cluster of galaxies lying right in front of it.