Space : NASA
Scientists over a long period of time have thought that galaxies have started out as out low-mass and tiny, busy forming stars. One of the first galaxies to be formed is ZF-COSMOS-20115 which was nearly five-times bigger than size of our galaxy and interestingly, all of the mass of the galaxy is condensed into an area that’s 12 times smaller than our galaxy’s current size.
In a recent article, Karl Glazebrook from Swinburne University of Technology said, “This huge galaxy formed like a firecracker in less than 100 million years, right at the start of cosmic history,” lead researcher Karl Glazebrook from Swinburne University of Technology in Australia said in a university news release. “It quickly made a monstrous object, then just as suddenly it quenched and turned itself off. As to how it did this we can only speculate. This fast life and death so early in the Universe is not predicted by our modern galaxy formation theories.”
“This discovery sets a new record for the earliest massive red galaxy. It is an incredibly rare find that poses a new challenge to galaxy evolution models to accommodate the existence of such galaxies much earlier in the Universe.”
In order to conclude on the significance of the findings, the team will follow up with millimeter wave telescope which will reveal details about the early days of the universe. Corentin Schreiber said, “Sub-millimetre waves are emitted by the hot dust which blocks other light and will tell us when these firecrackers exploded and how big a role they played in developing the primordial universe,”