Home > Science/Astronomy > NASA locates most distant galaxy ever discovered

NASA locates most distant galaxy ever discovered

The most distant galaxy ever seen in the universe has been detected by NASA’s Hubble and Spitzer space telescopes.

The most distant galaxy ever seen in the universe has been detected by NASA's Hubble and Spitzer space telescopes.

The newly discovered galaxy, named MACS0647-JD, is very young and only a tiny fraction of the size of our Milky Way Photo: Nasa

By , Science Correspondent

11:58AM GMT 16 Nov 2012

Light from the newly discovered galaxy, which astronomers have named MACS0647-JD, reached Earth after travelling across space for 13.3 billion years.

It provides a window on what the galaxy looked like just 420 million years after the big bang, when the universe was only three per cent of its current age.

The galaxy was detected using an effect known as gravitational lensing, where large clusters of galaxies are used as “natural zoom lenses” to enlarge the appearance of galaxies behind them.

Astronomers were able to detect a hint of light from MACS0647-JD because it was magnified as it passed around an enormous galaxy cluster known as MACS J0647+7015 as it travelled towards Earth.

Thanks to the gravitational force of the cluster, the Hubble telescope was able to detect the light at up to eight times the brightness it otherwise would.

Read more: http://www.telegraph.co.uk/science/space/9682959/NASA-locates-most-distant-galaxy-ever-discovered.html

 
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