The Big Bang is the name of the most respected theory of the creation of the universe. Basically, the theory says that the universe was once smaller and denser and has been expending for eons. One common misconception is that the Big Bang theory says something about the instant that set the expansion into motion, however this isn’t true. In this video, Fermilab’s Dr. Don Lincoln tells about the Big Bang theory and sketches some speculative ideas about what caused the universe to come into existence.
Showing posts with label Big Bang. Show all posts
Showing posts with label Big Bang. Show all posts
Friday, 10 October 2014
Saturday, 12 April 2014
Wednesday, 2 October 2013
ESA Euronews: Planck, Higgs and the Big Bang
When it comes to the origins of the Universe, there's one idea that really captures our imagination: everything, even time itself, started with the Big Bang.
The concept of the Big Bang is difficult to describe and problematic to measure, however that's exactly what two major projects have set out to do: one on Earth, the Large Hadron Collider at CERN, the other in space, ESA's Planck mission.
In this edition of Space, Euronews gets to the heart of the matter and attempts to discover how matter and everything in the Universe came into being. We speak with experts from the CERN, Institut d'Astrophysique de Paris, Sorbonne University and ESA, all studying how the Universe works.
The concept of the Big Bang is difficult to describe and problematic to measure, however that's exactly what two major projects have set out to do: one on Earth, the Large Hadron Collider at CERN, the other in space, ESA's Planck mission.
In this edition of Space, Euronews gets to the heart of the matter and attempts to discover how matter and everything in the Universe came into being. We speak with experts from the CERN, Institut d'Astrophysique de Paris, Sorbonne University and ESA, all studying how the Universe works.
Friday, 6 September 2013
Sunday, 23 June 2013
Planck maps the dawn of time
Scientists have traced a unique new map of the first light of the universe, and raised profound questions about the Big Bang.The image of the cosmic microwave background they have released was taken by ESA's Planck satellite, and its results could have a significant impact on the field of cosmology.
Acquired by ESA's Planck space telescope, the most detailed map ever created of the cosmic microwave background -- the relic radiation from the Big Bang -- was released this year, revealing the existence of features that challenge the foundations of our current understanding of the Universe.
The following animation explains how the wealth of information that is contained in the all-sky map of temperature fluctuations in the Cosmic Microwave Background (CMB) can be condensed into a curve known as the power spectrum.
The temperature of the CMB exhibits fluctuations on a variety of angular scales on the sky. The animation shows six different maps that depict the relative 'power', or strength, of the fluctuations at different angular scales. The maps correspond to different regions of the curve, starting at angles of ninety degrees on the left side of the graph, through to the smallest scales -- just a fraction of a degree -- on the right hand side.
By studying the peaks in the power spectrum curve, cosmologists can extract information regarding the ingredients of the Universe, such as ordinary matter, dark matter and dark energy, and the overall geometry of the Universe.
Credits: ESA and the Planck Collaboration
Acquired by ESA's Planck space telescope, the most detailed map ever created of the cosmic microwave background -- the relic radiation from the Big Bang -- was released this year, revealing the existence of features that challenge the foundations of our current understanding of the Universe.
The following animation explains how the wealth of information that is contained in the all-sky map of temperature fluctuations in the Cosmic Microwave Background (CMB) can be condensed into a curve known as the power spectrum.
The temperature of the CMB exhibits fluctuations on a variety of angular scales on the sky. The animation shows six different maps that depict the relative 'power', or strength, of the fluctuations at different angular scales. The maps correspond to different regions of the curve, starting at angles of ninety degrees on the left side of the graph, through to the smallest scales -- just a fraction of a degree -- on the right hand side.
By studying the peaks in the power spectrum curve, cosmologists can extract information regarding the ingredients of the Universe, such as ordinary matter, dark matter and dark energy, and the overall geometry of the Universe.
Credits: ESA and the Planck Collaboration
Friday, 8 June 2012
Picture of the Big Bang (a.k.a. Oldest Light in the Universe)
Where does all the stuff in the universe come from?
Cosmic microwave background radiation.
Other Minute Physics videos
Cosmic microwave background radiation.
Other Minute Physics videos
Wednesday, 21 September 2011
Yale: Frontiers and Controversies in Astrophysics, Lecture 17
ASTR 160 - Frontiers and Controversies in Astrophysics
Professor Charles Bailyn
Spring 2007
Source: Yale University, Open Yale Courses
Professor Charles Bailyn
Spring 2007
Source: Yale University, Open Yale Courses
- Review of Magnitudes
- Implications of Hubble's Discoveries on the Aging Universe
- Conceptualizing a Three-Dimensional Universe
- Q&A: The Big Bang, the Expansion, and the Big Crunch
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