Redshift means that light that is emitted as ultraviolet or visible light is shifted more and more to redder wavelengths. Their discovery, which you can read more about in the NASA feature is exciting because it might give us an idea of how abundant galaxies were close to the era when astronomers think galaxies first started forming. Phil Plait has a good column about this discovery too. As of this writing it seems that one of the galaxies in this recent Hubble discovery may be a distance record breaker - it was observed million years after the Big Bang, with a redshift of This means the light from this galaxy pictured below left It's only a tiny fraction of the size of our Milky Way - and was observed at million years after the Big Bang, when the universe was 3 percent of its present age of Postman and D.
Earlier in , with the combined power of NASA's Spitzer and Hubble Space Telescopes, as well as the use of gravitational lensing, a team of astronomers spotted what might then have been the most distant galaxy ever seen. Zheng JHU , M. In , a candidate for most distant galaxy was found in the Hubble Ultra Deep Field.
UDFy is thought to be There is more information in this article on Phil Plait's blog. I've used his labeled images:. The objects in the Hubble Ultra Deep Field may well be the farthest known objects, but there are other contenders. They include a galaxy called Abell IR, which was discovered in , by astronomers from the European Southern Observatory using a near-infrared instrument on the Very Large Telescope.
The object is visible to us because of gravitational lensing by the galaxy cluster Abell , which is between this object and us. This galaxy is thought to be about Note though, that this find has not been verified by other instruments - the Spitzer Space Telescope tried in without success.
Also in , a team using both the Hubble Space Telescope and the Keck Observatory discovered a galaxy that is believed to be about 13 billion years away from us. It was found when observing the galaxy cluster Abell The light from the distant galaxy was visible because of gravitational lensing. The very distant object is the one circled. For more information, check out this press release. Ellis Caltech.
Then there's the infrared James Webb Space Telescope. If you recall, Hubble has near infrared capability, but not mid-infrared, and for objects with very high redshifts, to see these most distant of objects would require a powerful telescope with mid-infrared capability. One model of galaxy evolution has the first galaxies forming then and we need JWST to test this theoretical prediction! Top panels: Hubble UDF. Credit: STScI. Note: JWST will be able to see these first galaxies without the aid of gravitational lensing; gravitational lensing might allow us to see them better, but would not necessarily let us see further back in time.
Furthest City has identified and analyzed over four thousand cities with a population of over k. For detailed information on the methodology and sources used, please refer to the About page above. Interesting statistics and facts can be found on every single page on this site, click around and enjoy your global journey.
Find out the furthest point from you by selecting your country and closest town or city and then clicking search. Home Cities Trivia About Quiz. Click the photo to find out about Prague, Czech Republic Click the photo to find out about Vienna, Austria Select Country first. Xinghua, Jiangsu, China. Subang Jaya, Malaysia.
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