Whatever happened had to unleash an unfathomable force, since the universe is still expanding billions of years later. The first seconds. Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. Featuring Kevin Conroy as Batman and The Big Bang Theory actress Melissa Rauch as Harley Quinn, Batman and Harley Quinn is a late addition to the DCAU. It illustrates what our solar system might have looked like billions of years ago. How did the universe begin? 13.73 billion years (70 Mya): North Star, 13.780 billion years (20 Mya): Possible formation of. Chinese rocket body disintegrates into big cloud of space junk, Your monthly guide to stargazing & space science, Try a single issue or save on a subscription, Issues delivered straight to your door or device. Through the 1970s and 1980s, most cosmologists accepted the Big Bang, but several puzzles remained, including the non-discovery of anisotropies in the CMB, and occasional observations hinting at deviations from a black-body spectrum; thus the theory was not very strongly confirmed. [39] En el inicio del universo ni hubo A key part of this comes from observations of the cosmic microwave background, which contains the afterglow of light and radiation left over from the Big Bang. At NBC News, Denise covers general science and climate change. It lies in a tunnel 27 kilometres (17 mi) in 1.8 billion years (12 Gya): Most energetic gamma ray burst lasting 23 minutes, 2.2 billion years (11.6 Gya): Globular Cluster, 3.0 billion years (10.8 billion Gya): Formation of the, 4.5 billion years (9.3 Gya): Fierce star formation in Andromeda making it into a luminous. Millis, John P., Ph.D. "How Did the Universe Get Started?" Web2022: The Pictures of the Year. Their data provide the clearest evidence for the cosmic birth event. Lemaitre had to wait until shortly before his death to learn of the discovery of cosmic microwave background radiation, the remnant radiation of a dense and hot phase in the early universe. It was really the rapid expansion of space and time. Our solar system is estimated to have been born a little after 9 billion years after the Big Bang, making it about 4.6 billion years old. [13] The images can be interpreted to indicate that the universe is 13.7 billion years old (within one percent error) and that the Lambda-CDM model and the inflationary theory are correct. Future US, Inc. Full 7th Floor, 130 West 42nd Street, Similarly, by studying the cosmic microwave background, astronomers can work backwards to piece together the events that came before. In 1927, the Belgian Catholic priest Georges Lemaitre proposed an expanding model for the universe to explain the observed redshifts of spiral nebulae, and calculated the Hubble law. Visit our corporate site (opens in new tab). The theory he devised to explain what he found is called the Big Bang theory. The first person to seriously apply general relativity to cosmology without the stabilizing cosmological constant was Alexander Friedmann. WebBrowse our listings to find jobs in Germany for expats, including jobs for English speakers or those in your native language. WMAP has produced a new, more detailed picture of the infant universe. How fast are we traveling through space?? Timeline Friedmann derived the expanding-universe solution to general relativity field equations in 1922. ThoughtCo, Aug. 28, 2020, thoughtco.com/origin-of-the-universe-3072255. Many astronomers at the time were still uncomfortable with the idea that the universe is expanding. How many black holes are there in the universe? An illustration of Earth surrounded by filaments of dark matter called "hairs". "The universe was expanding, and as it expanded, it got cooler and less dense," David Spergel, a theoretical astrophysicist at Princeton University in Princeton, N.J., told SPACE.com. WebAlthough the origins and history of Phoenix of the Earth-X limited series match her Earth-616 counterpart, the Phoenix Force is originally a citizen of the first universe that existed before the Big Bang that created the current universe in which Earth-9997 resides. So, how did the universe go from being fractions of an inch (a few millimeters) across to what it is today? Step 9: The expanding and accelerating universe. For the first 380,000 years after the Big Bang, however, the intense heat from the universe's creation made it essentially too hot for light to shine. Artemis 1 vs Apollo 17: 50 years apart, which was the greater challenge? By definition, nothing existed prior to the beginning, but that fact creates more questions than answers. That's a question scientists and philosophers have pondered throughout history as they looked at the starry sky above. The James Webb Space Telescope (JWST), launched in 2021, will continue the hunt for the elusive dark matter, as well as peering back to the beginning of time and the evolution of the universe using its infrared instruments. In this model, the universe is roughly the same at any point in time. It is an intrinsic expansion whereby the scale of space itself changes. Some theorists argue that the Big Bang theory is based on a false premise that the universe is built on an ever-expanding space-time. This phase is known as "recombination," and the absorption of free electrons caused the universe to become transparent. Much of this deuterium combined to make helium. Much of the current work in cosmology includes understanding how galaxies form in the context of the Big Bang, understanding what happened in the earliest times after the Big Bang, and reconciling observations with the basic theory. From then on, models of non-standard cosmology without some form of Big Bang became very rare in the mainstream astronomy journals. Various cosmological models of the Big Bang explain the evolution of the observable universe from the earliest known periods through its subsequent large-scale form. From around 1950 to 1965, the support for these theories was evenly divided, with a slight imbalance arising from the fact that the Big Bang theory could explain both the formation and the observed abundances of hydrogen and helium, whereas the Steady State could explain how they were formed, but not why they should have the observed abundances. After some reformulation, the Big Bang has been regarded as the best theory of the origin and evolution of the cosmos. c. 100 million years: Gravitational collapse: ordinary matter particles fall into the structures created by dark matter. They suggest a static universe, which is what was originally predicted by Einsteins theory of general relativity. An illustration of the timeline of the universe following the big bang. As space expanded, the universe cooled and matter formed. The antenna that Penzias and Wilson were using when they stumbled across the signals from the cosmic background radiation heralding the birth of the universe. [8], In 1931, Lematre proposed in his "hypothse de l'atome primitif" (hypothesis of the primeval atom) that the universe began with the "explosion" of the "primeval atom" what was later called the Big Bang. Vera Rubin, an astronomer at the Carnegie Institution of Washington, observed the speeds of stars at various locations in galaxies. The image reveals 13.7 billion year old temperature fluctuations (shown as color differences) that correspond to the seeds that grew to become the galaxies. Seventy-seven years later, Isaac Newton described large-scale motion throughout the universe. Discover, July, 1999. Millis, John P., Ph.D. (2020, August 28). According to the Big Bang theory, the universe was born as a very hot, very dense, single point in space. Webdj It represents light from a time when the newborn universe was lighting up some 380,000 years after the Big Bang occurred. WebExploring the latest in scientific discoveries from prehistoric life to missions to Mars. An artist's concept of what the Big Bang might have looked like, if anybody had been around to see it. 200300 million years: First stars begin to shine: Because many are. In 1610, Johannes Kepler used the dark night sky to argue for a finite universe. 6 hours ago WebFundamental to modern cosmology is the well-accepted theory of the Big Bang, wherein our Universe began at a single point in time, and thereafter expanded over the course of 13.8 billion years to its present condition. How many molecules/atoms are there in each cubic meter? It was actually Hoyle who coined the name of Lematre's theory, referring to it as "this 'big bang' idea" during a radio broadcast on 28 March 1949, on the BBC Third Programme. As gravity caused the nebula to collapse, it spun faster and flattened into a disk. We look at the furthest stars and extrapolate them back to the zero point (Big Bang) based on how fast it is expanding. WebIl Big Bang (pron. The very early universe (at a time a few fractions of a second after the Big Bang began) was not bound by the laws of physics as we know them today. (Image credit: ESA, NASA, S. Beckwith (STScI) and the HUDF Team, Northrop Grumman Aerospace Systems / STScI / ATG medialab), The Beginning and Evolution of the Universe, James Webb Space Telescope peers into the 'ghostly light' of interstellar space, Rocket Lab now aims to launch 1st Electron booster from US soil on Dec. 13, NASA's Artemis 1 moon mission is going so well that engineers added more Orion tests (video). The detailed, all-sky picture of the infant universe created from seven years of WMAP data. He based his theory on the work of Einstein and De Sitter, and independently derived Friedmann's equations for an expanding universe. It was this interpretation that led to the concept of the expanding universe. From our current understanding of how the Big Bang might have progressed, taking into account theories about inflation, Grand Unification, etc, we can put together an approximate timeline as follows: Quantum Theory and the Uncertainty Principle. And, expansion is a big part of the story, particularly as it involves the existence ofdark energy. What Is the Steady-State Theory in Cosmology? This showed that earlier claims of spectral deviations were incorrect, and essentially proved that the universe was hot and dense in the past, since no other known mechanism can produce a black-body to such high accuracy. Universe; Timeline of cosmological theories the violence and energy produced is more than enough to give rise to a big bang. Instead, it was the appearance of space everywhere in the universe, researchers have said. While the Big Bang theory is the most widely accepted model that explains the origins of the universe and is supported by all the observational evidence, there are other models that use the same evidence to tell a slightly different story. Roughly 400 million years after the Big Bang, the universe began to come out of its dark ages. Decades later, in 1998, the prolific space telescope named after the famous astronomer, the Hubble Space Telescope, studied very distant supernovas and found that, a long time ago, the universe was expanding more slowly than it is today. He conducts research at the VERITAS gamma-ray observatory in southern Arizona. During the billions of years that followed, stars, planets, and galaxies formed to create the current universe. This page was last edited on 1 December 2022, at 19:11. As the universe expanded, temperatures cooled and protons and neutrons collided to make deuterium, which is an isotope of hydrogen. The two men's discovery was the first evidence of that primordial event. The difference is that instead of an audible echo, the Big Bang's clue is a heat signature throughout all of space. Some parts of the universe are too far away for the light emitted since the Big Bang to have had enough time to reach Earth or space-based instruments, and therefore lie outside the observable universe. 11.6 billion years (2.2 Gya): Last great tectonic period in Martian geologic history: 11.8 billion years (2 Gya): Star formation in, 12.8 billion years (1 Gya): The Kuiperian Era (1 Gyr present) begins on Mercury: modern Mercury, a desolate cold planet that is influenced by space erosion and solar wind extremes. it underwent an incredible growth spurt. WebHubble's law, also known as the HubbleLematre law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. So, no one can predict with great accuracy what the universe looked like at that time. No other cosmological theory can yet explain such a wide range of observed parameters, from the ratio of the elemental abundances in the early universe to the structure of the cosmic microwave background, the observed higher abundance of active galactic nuclei in the early universe and the observed masses of clusters of galaxies. This discovery was surprising because it was long thought that the gravity of matter in the universe would slow its expansion, or even cause it to contract. [2], In his 1225 treatise De Luce (On Light), English theologian Robert Grosseteste explored the nature of matter and the cosmos. This process is now referred to as the Big Bang, a term first coined by Sir Fred Hoyle during a British Broadcasting Corporation (BBC) radio broadcast in 1950. Einsteins theory was only later modified to accommodate the way the universe appears to be expanding. That signature has been specifically studied by the Cosmic Background Explorer (COBE) spacecraft and the Wilkinson Microwave Anisotropy Probe (WMAP). Many scientists think the sun and the rest of our solar system was formed from a giant, rotating cloud of gas and dust known as the solar nebula. Light chemical elements were created within the first three minutes of the universe's formation. De Luce is the first attempt to describe the heavens and Earth using a single set of physical laws.[3]. WebThe theory, accepted by nearly all astronomers today, was a radical departure from scientific orthodoxy in the 1930s. Then, it cooled as it expanded. 5()", "Another record bites the dust: BTS hit new milestone on the Melon charts", "Big Bang Breaks Record for Highest Concert Ticket Sales for Korean Artist in Taiwan", "Big Bang closes Japan Dome Tour, breaks ticket sales record", "Big Bang returns home after epic world tour", "Big Bang Becomes First Foreign Artist to Hold Japanese Dome Tour Three Years Straight", "Shanghai Concert of Bigbang's World Tour Electrified 30,000 Fans Great Success", "Big Bang Add Additional Date To Made World Tour In Malaysia", "Bigbang Announce Huge Arena Tour for America This Fall", "Big Bang Mount One Of The Most Expensive Concerts In Malaysian History For 'Made' World Tour", ", 11-18 .." ", "K-pop band Big Bang doing booming business in Toronto", "Bigbang holds biggest concert for 10th anniversary, guest star surprises fans", Big Bang (musical group from South Korea), Special Final in Dome Memorial Collection, Mnet Asian Music Award for Best Vocal Performance, MTV Europe Music Award for Best Worldwide Act, Coup d'Etat + One of a Kind & Heartbreaker, https://en.wikipedia.org/w/index.php?title=Big_Bang_(band)&oldid=1125417119, South Korean contemporary R&B musical groups, CS1 maint: bot: original URL status unknown, Short description is different from Wikidata, Wikipedia indefinitely semi-protected pages, Articles containing Japanese-language text, Articles with unsourced statements from November 2021, Articles with Korean-language sources (ko), Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 3 December 2022, at 22:25. [7] In 1929, Edwin Hubble discovered that most of the universe was expanding and moving away from everything else. WebLatest breaking news, including politics, crime and celebrity. Ignored by the scientific community and often misunderstood by literary critics, its scientific implications have been reevaluated in recent times. Hubble's experimental observations discovered that, relative to the Earth and all other observed bodies, galaxies are receding in every direction at velocities (calculated from their observed red-shifts) directly proportional to their distance from the Earth and each other. Galaxy collision with Messier 82 forms its patterned spiral disc: galaxy interactions between NGC 3077 and Messier 81; Saturn's moon, 13.175 billion years (625 Mya): formation of, 13.2 billion years (600 Mya): Collision of spiral galaxies leads to the creation of, 13.7 billion years (100 Mya): Formation of. The existence of this elusive energy, which is thought to make up 80% of the universe, is one of the most hotly debated topics in cosmology. [6] Friedmann's equations describe the FriedmannLemaitreRobertsonWalker universe. For more information about the evolution of the universe check out, "The History of the Universe (opens in new tab)" by David H. Lyth or "A Brief History of Time (opens in new tab)" by Stephen Hawking. This expansion involves neither The Big Bang is thought to have occurred when something kicked off the expansion of a tiny singularity, some 13.8 billion years ago. This could result in a new big bang from the cyclic universe scenario. The Big Bang is the name given to the birth event of the universe. In the future, light from distant galaxies will have had more time to travel, so The Basics of Physics in Scientific Study, Life and Work of Fred Hoyle, British Astronomer, Stellar Nucleosynthesis: How Stars Make All of the Elements, Wilkinson Microwave Anisotropy Probe (WMAP), Ph.D., Physics and Astronomy, Purdue University. One was Lematre's Big Bang, advocated and developed by George Gamow. In addition, the discovery of the cosmic microwave background radiation in 1964 was considered the death knell of the Steady State, although this prediction was only qualitative, and failed to predict the exact temperature of the CMB. Walter Perry, "Origin and Evolution of the Universe (opens in new tab)", Journal of Modern Physics, Volume 12, November 2021. Join our Space Forums to keep talking space on the latest missions, night sky and more! The cloud was about 20 parsecs (65 light years) across, while the fragments were roughly 1 parsec (three and a quarter light-years) across. How far is it to space, the Moon, the Sun, the stars, etc? *The following timeline is compiled using the years given in the guidebooks and video games, which are different to the ones used in Weekly Jump (2015). An epoch is a moment in time from which nature or situations change to such a degree that it marks the beginning of a new era or age.. Times on this list are measured from the Also, the red shifts themselves were not constant, but varied in such manner as to lead to the conclusion that there was a definite relationship between amount of red-shift of nebulae, and their distance from observers. According to physics, the universe sprang into existence from a singularity a term physicists use to describe regions of space that defy the laws of physics. Also in that decade, Albert Einstein's theory of general relativity was found to admit no static cosmological solutions, given the basic assumptions of cosmology described in the Big Bang's theoretical underpinnings. Denise Chow is a former Space.com staff writer who then worked as assistant managing editor at Live Science before moving to NBC News as a science reporter, where she focuses on general science and climate change. In 2013 and 2015, ESA's Planck spacecraft released even more detailed images of the cosmic microwave background, showing consistency with the Lambda-CDM model to still higher precision. The "Big Bang" event most likely happened 13.8 billion years ago; see age of the universe. Slipher used spectroscopy to investigate the rotation periods of planets, the composition of planetary atmospheres, and was the first to observe the radial velocities of galaxies. We know the universe is about 13.7 billion years old because we see it expand. ThoughtCo. Galaxy classes may have also begun forming at this time including, 1.31 billion years (12.49 Gya): Globular Cluster. 6.0 billion years (7.8 Gya): Many galaxies like, 6.0 billion years (7.8 Gya): The Universe continues to organize into larger wider structures. WebThe history of the Big Bang theory began with the Big Bang's development from observations and theoretical considerations. And if you have a news tip, correction or comment, let us know at: [email protected]. It was built by the European Organization for Nuclear Research (CERN) between 1998 and 2008 in collaboration with over 10,000 scientists and hundreds of universities and laboratories, as well as more than 100 countries. What they found (and for which they won a Nobel Prize), is often described as the echo of the Big Bang. From 2001 to 2010, NASA's WMAP spacecraft took very detailed pictures of the universe by means of the cosmic microwave background radiation. 5.1 billion years (8.7 Gya): Galaxy collision: spiral arms of the Milky Way form leading to major period of star formation. What is a planet? While much has been discovered about the creation and evolution of the universe, there are enduring questions that remain unanswered. The 2017 animated film directed by Sam Liu is loosely connected to the DCAU, but its art style and creator reveal that it is supposed to be set in that universe. 2dFGRS galaxy red-shift survey estimated the mean matter density around 2530 percent of critical density. Dark matter and dark energy remain two of the biggest mysteries, but cosmologists continue to probe the universe in hopes of better understanding how it all began. The philosophy of Aristotle held that the universe had an infinite past, which caused problems for past Jewish and Islamic philosophers who were unable to reconcile the Aristotelian conception of the eternal with the Abrahamic view of creation. CMB observations showed that the geometry of the universe is close to flat, then in 2001 the The events of the Future Trunks and Cell's Alternate Timelines are included and clearly noted. However, it's not an easy one to tackle. Cosmologists continue to calculate many of the parameters of the Big Bang to a new level of precision, and carry out more detailed observations which are hoped to provide clues to the nature of dark energy and dark matter, and to test the theory of General Relativity on cosmic scales. WebPresolar nebula. Although they didn't know it at the time, they had discovered the Cosmic Microwave Background (CMB). It was so hot that it consisted of only raw energy for hundreds of thousands of years before the matter could form. Without the Big Bang, no stars, galaxies, planets, or life could exist. What started the birth of the universe? The universe was in a hot, dense state and began to expand through a process called inflation. In the first moments after the Big Bang, the Universe was a hot soup of particles where space and time was still to properly emerge (Credit: Science History Images/Alamy) 300 million years: First large-scale astronomical objects, 700 million years: Galaxies form. Dubbed the "Kings of K-pop", they helped spread the Korean Wave [11] As evidence in favour of the Big Bang model mounted, and the consensus became widespread, Hoyle himself, albeit somewhat reluctantly, admitted to it by formulating a new cosmological model that other scientists later referred to as the "Steady Bang".[12]. The Big Bang is thought to have occurred when something kicked off the expansion of a tiny singularity, some 13.8 billion years ago. The emitted ultraviolet light from these energetic events cleared out and destroyed most of the surrounding neutral hydrogen gas. WebResources and materials to support your teaching of chemistry to primary, secondary and higher education students. Big Bang Theory (song), Barenaked Ladies (2007) themesong to the U.S. TV sitcom, see The Big Bang Theory#Theme song; Big Bang Theory (2005); Big Bang Theory (Harem Scarem album) (1998); Other uses "The Big [10] The light that was unleashed at this time is detectable today in the form of radiation from the cosmic microwave background. This mysterious and invisible mass became known as dark matter. This was formalized as Richard Tolman's oscillating universe. The text of each lecture was published in The Listener a week after the broadcast, the first time that the term "big bang" appeared in print. This includes safe and reliable practical experiments, interactive simulations, games and problem solving activities Certainly, it is possible the formation of super-structures like the. For an incomprehensibly small fraction of a second, the universe is an infinitely dense, hot fireball. The universe (i.e., the space-time metric) was described by a metric tensor that was either expanding or shrinking (i.e., was not constant or invariant). How do we know how old the universe is? An infrared view of a developing star taken by NASA's Spitzer Space Telescope. She spent two years with Space.com, writing about rocket launches and covering NASA's final three space shuttle missions, before joining the Live Science team in 2013. What is a dwarf planet? That's when astronomers Arno Penzias and Robert Wilson discovered a microwave signal buried in data they were taking to look for signals being bounced from Echo balloon satellites. WebIGN is the leading site for the latest and trending news for video games, interviews, videos, and wikis [4], Observationally, in the 1910s, Vesto Slipher and later, Carl Wilhelm Wirtz, determined that most spiral nebulae (now correctly called spiral galaxies) were receding from Earth. (Image credit: NASA/ESA/University of Florida, Gainsville/University of Missouri-Kansas City/UC Davis). WebThe expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observable universe with time. As a result. Light from shortly after the Big Bang is detectable as the cosmic microwave radiation (CMB). The nebular hypothesis says that the Solar System formed from the gravitational collapse of a fragment of a giant molecular cloud, most likely at the edge of a Wolf-Rayet bubble. Heres how it works. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. In the 1920s, astronomer Edwin Hubble made a revolutionary discovery about the universe. They assumed at the time that it was simply unwanted noise and attempted to filter out the signal. Times on this list are measured from the moment of the Big Bang. According to Poe, the initial state of matter was a single "Primordial Particle". While our understanding of the actual events is still incomplete, CMB data are helping shape the theories that explain the birth of the cosmos. WebThe Large Hadron Collider (LHC) is the world's largest and highest-energy particle collider. Magazine; 2022: The Pictures of the Year We sent our photographers around the globe to document our world and our times. https://www.thoughtco.com/origin-of-the-universe-3072255 (accessed December 11, 2022). This dynamic phase was thought to have lasted more than a half-billion years, but based on new observations, scientists think re-ionization may have occurred more rapidly than previously thought. Formation and evolution of the Solar System, Graphical timeline from Big Bang to Heat Death, Graphical timeline of the Stelliferous Era, https://en.wikipedia.org/w/index.php?title=Graphical_timeline_of_the_universe&oldid=1116402168, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 16 October 2022, at 11:15. WebHit the Button is an interactive maths game with quick fire questions on number bonds, times tables, doubling and halving, multiples, division facts and square numbers. This artists impression shows galaxies at a time less than a billion years after the Big Bang, when the universe was still partially filled with hydrogen fog that absorbed ultraviolet light. This constant would restore to the general theory's description of space-time an invariant metric tensor for the fabric of space/existence. c. 70,000 years: Matter domination in Universe: onset of gravitational collapse as the, c. 400,000 years: Density waves begin imprinting characteristic, c. 10-17 million years: The "Dark Ages" span a period during which the temperature of. It left behind a signature of itself, just like an echo heard in a canyon represents a signature of the original sound. ), Learn how and when to remove this template message, List of the most distant astronomical objects, Formation and evolution of the Solar System, "The Habitable Epoch of the Early Universe", "Much-Discussed Views That Go Way Back Avi Loeb Ponders the Early Universe, Nature and Life", "Nearby star is almost as old as the Universe", "Ancient Galaxy May Be Most Distant Ever Seen", "Hubble Spies Most Distant, Oldest Galaxy Ever", "GRB 090423 goes Supernova in a galaxy, far, far away", https://en.wikipedia.org/w/index.php?title=Timeline_of_the_early_universe&oldid=1125013722, Short description is different from Wikidata, Articles needing additional references from October 2016, All articles needing additional references, Creative Commons Attribution-ShareAlike License 3.0, c. 10 seconds: Universe dominated by photons of radiation ordinary matter particles are coupled to. What is the coldest place in the universe? [7], In 1929, Edwin Hubble provided a comprehensive observational foundation for Lemaitre's theory. Yet, scientists have been able to construct an approximate representation of how the universe evolved. NASA, "Brief History of the Universe", December 2006. WebExplore the Marvel Cinematic Universe timeline and watch Marvel movies and shows in chronological order. Get the latest science news and technology news, read tech reviews and more at ABC News. The Big Bang Timeline The history of the universe. Here is a breakdown of the Big Bang to now in 10 easy-to-understand steps. 13.8 billion years (Without uncertainties): Present day. He described the birth of the universe in an explosion and the crystallization of matter to form stars and planets in a set of nested spheres around Earth. In fact, she found that all stars in a galaxy seem to circle the center at more or less the same speed. New York, This result, coming from an evaluation of the field equations of the general theory, at first led Einstein himself to consider that his formulation of the field equations of the general theory may be in error, and he tried to correct it by adding a cosmological constant. The Big Bang was not an explosion in space, as the theory's name might suggest. Hoyle repeated the term in further broadcasts in early 1950, as part of a series of five lectures entitled The Nature of The Universe. Timeline of universe events since the Big Bang 13.8 billion years ago, Epochs of the formation of the Solar System. The first major glimmerings of an answer came from the sky in 1964. Due to the extreme conditions and the violence of its very early stages, it arguably saw more activity and change during the first second than in all the billions of years since. 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