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The Big Bang theory of cosmology successfully describes the 13.7 billion years of evolutionary history of our Universe. However, it is known that the current Big Bang theory cannot self-consistently explain its initial conditions. We are interested in finding out what caused the Big Bang, and the physics involved in this primordial epoch.
Hubble’s discovery was the first observational support for Georges Lemaître’s Big Bang theory of the universe, proposed in 1927. Lemaître proposed that the universe expanded explosively from an extremely dense and hot state, and continues to expand today. Subsequent calculations have dated this Big Bang to approximately 13.7 billion years ...
Sep 30, 2022 · About 13.8 billion years ago, the universe sprang into existence in an event known as the big bang. The early universe was incredibly hot — too hot for even atoms to exist — and extraordinarily dense. As the universe expanded, its temperature and density decreased. Atoms formed, then molecules. Gravity drew the matter into greater and ...
Mar 4, 2024 · Big Bang Theory is about the origin of the Universe. It suggests that about 1370 crore (13.7 billion) years ago, all matter and energy in the universe was concentrated in an area smaller than an atom. At this instant, matter, energy, space, and time were not existent. Then suddenly with a bang, the Universe began to expand at an incredible rate ...
Mar 27, 2024 · The Big Bang theory explains the early development of the Universe. According to this theory, the Universe expanded from an extremely small, hot, and dense state called Singularity. Since then, it has expanded and become less dense and cooler. The Big Bang is the best model to explain the creation of matter, space, and time 13.7 billion years ago.
Jun 13, 2024 · In 1927, an astronomer named Georges Lemaître had a big idea. He said that a very long time ago, the universe started as just a single point. He said the universe stretched and expanded to get as big as it is now, and that it could keep on stretching. What an Idea! The universe is a very big place, and it’s been around for a very long time.
Sep 17, 2009 · Dr David Krofcheck is a particle physicist who believes that the Big Bang is how matter came about. In this video, David explains how the universe as we know it came about – the Big Bang produced all of the hydrogen and most of the helium present in the universe. He describes the evidence that supports the Big Bang theory. Point of interest: The next time you produce, collect, and ‘pop’ a sample of hydrogen in the lab, realise that it was formed about 14 billion years ago in an instant ...
