Summary: Lighted spaces allow the transparent Universe that the first 300,000 years after the Big Bang avoided in Bang! The Complete History of the Universe.
Lighted spaces are the aftermaths of dropping temperatures and decelerating neutrons and protons in the 300,000-year-old opaque Universe that associated matter and radiation, according to Bang! The Complete History of the Universe.
Electromagnetic waves, including visible light, brandish wave-particle duality in behaving as streamed photon particles with zero mass and 186,000-mile (300,000-kilometer) speeds per second and as waves. Anti-protons and protons colliding creates photons with a certain quantum (from Latin quantum, "how much") of energy correlated with the color of light that electrons capture. Opaque, 300,000-year-old space drew electrons into heavier atomic nuclei, for the first neutral atoms and, at 3000 degrees Celsius (5432 degrees Fahrenheit), divorced matter from radiation.
The Cosmic Microwave Background (CMB) enshrined the transparent Universe whose opacity ended with dropping temperatures, expanding space, electrons embedded in heavy atomic nuclei and freewheeling photons.
Chapter 2 And Then There Was Light fits CMB echoes into one percent of black and white static from retuned television channels or unplugged television aerials.
CMB radiation got emitted 300,000 years, at 3000 degrees Celsius (5432 degrees Fahrenheit), after the Big Bang even though expanded spaces gives it cooler apparent temperatures. A hypothetical black body such as the dense, hot, opaque Universe harvests all the radiation that hits it and, when heated, has temperature-dependent, wavelength-specific light intensities. Its CMB radiation emission frequency indicates an average, cooler apparent, red-shifted temperature of 2.7 Kelvin (minus 270.45 degrees Celsius, minus 454.81 degrees Fahrenheit) in expanding space.
Early-Universe matter joined early-Universe regions of above-average density where gravitationally compressive heat juggled CMB radiation temperature variations of one ten-thousandth of a degree in lighted spaces.
CMB radiation temperature variations kindle sky maps of blue, colder, short-wavelength and hotter, long-wavelength, red regions one angular degree across, twice the full Moon's apparent size.
Recent effects lessen understanding the early, flat, open Universe of little matter and temperature variations and of light less bent than in closed, matter-loaded, wide-varied Universes. The solar photosphere's dense, hot, luminous interior and transparent exterior respectively manifest colliding protons like after the Big Bang and freewheeling protons like after CMB's creation. Radio waves navigate otherwise impenetrable cloud interiors to net otherwise unobtainable meteorological information whereas no electromagnetic radiation navigates the first 300,000 years after the Big Bang.
Such almost massless, exotic, tiny forms of matter as high-energy neutrinos that occur unchanged since before the CMB epoch offer opportunities for overcoming the 300,000-year obstacle.
Cosmologists (from Greek κόσμος, "world" and -λογία, "study") pursue the history of the Universe since the 300,000-year obstacle by perceiving the remotest times in remotest objects.
COsmic Background Explorer (COBE) Satellite detections and BOOMERanG, MAXIMA and Wilkinson Microwave Anisotropy Probe (WMAP) experiments queue up early-Universe, irregular densities of one part in 10,000. They reveal an early, near-uniform, transparent Universe and an irregular, random present with near-matterless regions and regions superclustered with honeycomb-like structures and Milky Way-like spiral galaxies. Our irregular, random Universe suggests early-universe regions of above- and below-average densities that sheltered respectively more or less matter due to greater or weaker gravitational pull.
Computer models trace for co-authors Chris Lintott, Brian May and Patrick Moore the large-structured, present-day Universe's evolutionary trail to variable densities among and within lighted spaces.
Acknowledgment
My special thanks to talented artists and photographers/concerned organizations who make their fine images available on the internet.
Image credits:
Image credits:
Graphic presents refinements in spatial resolutions of depictions of Cosmic Microwave Background (CMB), ancient light left over from Big Bang; (top) simulation by CMB discoverers Arno Allan Penzias and Robert Woodrow Wilson; (middle) four-year COBE (COsmic Background Explorer) map; (bottom) three-year WMAP (Wilkinson Microwave Anisotropy Probe) view: NASA / WMAP Science Team, via NASA GSFC WMAP @ https://wmap.gsfc.nasa.gov/media/081031/index.html
Astrophysicist and Bang! co-author Brian May is lead guitarist of British rock band Queen; (left to right) John Deacon, Roger Taylor, Freddie Mercury and Brian May: Queen @Queen, via Facebook Aug. 30, 2012, @ https://www.facebook.com/Queen/photos/a.10150597833102362/10151060534162362/
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