A Close-Up of the Gravitationally-Lensed Image
A close-up of the gravitationally-lensed image shows why astronomers are excited about this unique opportunity to study the distant galaxy's structure. The stretched-out image reveals tiny knots of vigorous starbirth activity. This provides a first detailed look at the early construction phase of a galaxy undergoing formation.
Credit: Marijn Franx (University of Groningen, The Netherlands), Garth Illingworth (University of California, Santa Cruz) and NASA