Internationally renown Astrophysicist George F. Is the standard Big Bang theory the only model consistent with these evidences? No, it's just the most popular one. Penzias and Wilson shared in the 1978 Nobel Prize for Physics for their discovery.įinally, the abundance of the "light elements" Hydrogen and Helium found in the observable universe are thought to support the Big Bang model of origins.īig Bang Theory - The Only Plausible Theory? This is thought to be the remnant which scientists were looking for. In 1965, Radioastronomers Arno Penzias and Robert Wilson discovered a 2.725 degree Kelvin (-454.765 degree Fahrenheit, -270.425 degree Celsius) Cosmic Microwave Background radiation (CMB) which pervades the observable universe. Third, if the universe was initially very, very hot as the Big Bang suggests, we should be able to find some remnant of this heat. This observation supports the expansion of the universe and suggests that the universe was once compacted. This is called "Hubble's Law," named after Edwin Hubble (1889-1953) who discovered this phenomenon in 1929.
Second, galaxies appear to be moving away from us at speeds proportional to their distance. What are the major evidences which support the Big Bang theory?įirst of all, we are reasonably certain that the universe had a beginning. All we really know is that we are inside of it and at one time it didn't exist and neither did we.īig Bang Theory - Evidence for the Theory We don't know where it came from, why it's here, or even where it is. So where and in what did the singularity appear if not in space? We don't know. Prior to the singularity, nothing existed, not space, time, matter, or energy - nothing. 1, 2 According to their calculations, time and space had a finite beginning that corresponded to the origin of matter and energy." 3 The singularity didn't appear in space rather, space began inside of the singularity. In 19, they published papers in which they extended Einstein's Theory of General Relativity to include measurements of time and space. Back in the late '60s and early '70s, when men first walked upon the moon, "three British astrophysicists, Steven Hawking, George Ellis, and Roger Penrose turned their attention to the Theory of Relativity and its implications regarding our notions of time. According to the many experts however, space didn't exist prior to the Big Bang. Rather than imagining a balloon popping and releasing its contents, imagine a balloon expanding: an infinitesimally small balloon expanding to the size of our current universe.Īnother misconception is that we tend to image the singularity as a little fireball appearing somewhere in space. Experts however say that there was no explosion there was (and continues to be) an expansion. For example, we tend to imagine a giant explosion. There are many misconceptions surrounding the Big Bang theory. It continues to expand and cool to this day and we are inside of it: incredible creatures living on a unique planet, circling a beautiful star clustered together with several hundred billion other stars in a galaxy soaring through the cosmos, all of which is inside of an expanding universe that began as an infinitesimal singularity which appeared out of nowhere for reasons unknown. Why did it appear? We don't know.Īfter its initial appearance, it apparently inflated (the "Big Bang"), expanded and cooled, going from very, very small and very, very hot, to the size and temperature of our current universe.
These zones of infinite density are called "singularities." Our universe is thought to have begun as an infinitesimally small, infinitely hot, infinitely dense, something - a singularity.
The pressure is thought to be so intense that finite matter is actually squished into infinite density (a mathematical concept which truly boggles the mind). They are thought to exist at the core of "black holes." Black holes are areas of intense gravitational pressure. Singularities are zones which defy our current understanding of physics. What is a "singularity" and where does it come from? Well, to be honest, we don't know for sure. The big bang theory is an effort to explain what happened during and after that moment.Īccording to the standard theory, our universe sprang into existence as "singularity" around 13.7 billion years ago. Prior to that moment there was nothing during and after that moment there was something: our universe. Discoveries in astronomy and physics have shown beyond a reasonable doubt that our universe did in fact have a beginning. The Big Bang theory is an effort to explain what happened at the very beginning of our universe.
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