September 30, 2022

Our expanding universe: Age, history & other facts

During this time, which lasted more than a half-billion years, clumps of gas collapsed enough to form the very first stars and galaxies, whose energetic ultraviolet light ionized and destroyed most of the neutral hydrogen.Although the growth of the universe gradually slowed down as the matter in the universe pulled on itself via gravity, about 5 or 6 billion years after the Big Bang, according to NASA, a mysterious force now called dark energy started speeding up the expansion of the universe once again, a phenomenon that continues today.A bit after 9 billion years after the Big Bang, our solar system was born.The Big BangThe globular cluster NGC 6397 includes around 400,000 stars and is located about 7,200 light years away in the southern constellation Ara. The universe has actually not expanded from any one area considering that the Big Bang– rather, area itself has actually been stretching, and carrying matter with it.Since the universe by its definition includes all of space and time as we understand it, NASA states it is beyond the design of the Big Bang to state what the universe is broadening into or what gave rise to the Big Bang. Of the remainder, 23 percent is made up of dark matter, which is most likely made up of one or more species of subatomic particles that interact really weakly with common matter, and 72 percent is made of dark energy, which obviously is driving the speeding up growth of the universe.When it comes to the atoms we are familiar with, hydrogen makes up about 75 percent, while helium makes up about 25 percent, with much heavier elements making up only a small portion of the universes atoms, according to NASA.What shape is it?The shape of the universe and whether or not it is finite or unlimited in level depends on the battle in between the rate of its growth and the pull of gravity. If so, the universe has no bounds, and will expand forever.If the density of the universe precisely equates to the critical density, then the geometry of the universe is “flat” with absolutely no curvature like a sheet of paper, according to NASA. Rather, it was broadening; a discover that exposed the universe was apparently born in a Big Bang.After that, it was long believed the gravity of matter in the universe was specific to slow the growth of the universe.

Throughout this time, which lasted more than a half-billion years, clumps of gas collapsed enough to form the very first stars and galaxies, whose energetic ultraviolet light ionized and damaged most of the neutral hydrogen.Although the growth of the universe slowly slowed down as the matter in the universe pulled on itself via gravity, about 5 or 6 billion years after the Big Bang, according to NASA, a strange force now called dark energy started speeding up the expansion of the universe once again, a phenomenon that continues today.A little bit after 9 billion years after the Big Bang, our solar system was born.The Big BangThe globular cluster NGC 6397 contains around 400,000 stars and is situated about 7,200 light years away in the southern constellation Ara. The universe has actually not broadened from any one spot given that the Big Bang– rather, area itself has actually been stretching, and bring matter with it.Since the universe by its definition encompasses all of space and time as we know it, NASA states it is beyond the design of the Big Bang to state what the universe is expanding into or what offered rise to the Big Bang. Rather, it was expanding; a discover that revealed the universe was obviously born in a Big Bang.After that, it was long believed the gravity of matter in the universe was particular to slow the growth of the universe.

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