MACS j1149.5+223

Beautiful image of a huge galaxy cluster with the name of MACS j1149.5+223. The galaxy cluster is only 5,000-million light-years away!

What’s more, this image contains a star which is “visible” because of a gravitational lens effect, it is actually much more distant. You’ll not see it in the image above but there is a link in ESA’s description below that does show it.

Before we get to the description, I was must musing about who is going to be the one(s) that come up with a way to reconstruct the lensed images? Oh it’s coming all right, has to be, we have too much great talent out there. It will be Nobel Prize time.

The original caption from ESA:

  • This image shows the huge galaxy cluster MACS J1149.5+223, whose light took over 5 billion years to reach us.The huge mass of the cluster is bending the light from more distant objects. The light from these objects has been magnified and distorted due to gravitational lensing. The same effect is creating multiple images of the same distant objects.

    Astronomers using the NASA/ESA Hubble Space Telescope have found the most distant star ever discovered. The hot blue star existed only 4.4 billion years after the Big Bang. This discovery provides new insight into the formation and evolution of stars in the early Universe, the constituents of galaxy clusters and also on the nature of dark matter.

    Go to Hubble uses cosmic lens to discover most distant star ever observed [heic1525] to learn more.

    Image: NASA, ESA, S. Rodney (John Hopkins University, USA) and the FrontierSN team; T. Treu (University of California Los Angeles, USA), P. Kelly (University of California Berkeley, USA) and the GLASS team; J. Lotz (STScI) and the Frontier Fields team; M. Postman (STScI) and the CLASH team; and Z. Levay (STScI)

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