Most distant object in the universe
- Who
- GN-z11
- What
- 11.1 redshift
- Where
- Not Applicable
- When
- 03 March 2016
On 3 March 2016, an international team of astronomers, using data from the Wide Field Camera 3 on Hubble Space Telescope, announced their discovery of a galaxy in the constellation Ursa Major with a redshift of 11.1. The light detected by Hubble from this galaxy, GN-z11, dates back 13.4 billion years, just around 400 million years after the Big Bang. In the 13.4 billion years that this light has taken to reach Earth, the expansion of the Universe means that GN-z11 is now around 32 billion light years from Earth.
GN-z11 is only around one twenty-fifth the size of our Milky Way galaxy. More recent studies of UDFj-39546284 (the previous record holder) show that this object is much more likely to be much closer, but with some extreme emission lines in its spectrum that made it appear to have a much higher redshift.