The Illustris simulation is the most ambitious computer simulation of our Universe yet performed. The calculation tracks the expansion of the universe, the gravitational pull of matter onto itself, the motion of cosmic gas, as well as the formation of stars and black holes. These physical components and processes are all modeled starting from initial conditions resembling the very young universe 3
Objects like UDFj-39546284 are at the limit of the Hubble telescope's vision Hubble astronomers have observed deeper into space than ever before. In doing so, they have identified six new galaxies of stars that formed just a few hundred million years after the Big Bang itself. The study also updates a distance estimate for a seventh galaxy, placing it further back in time than any object previousl
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