3-D Illustration: Cosmological Reionization Process

About this video
Duration: 32 seconds

"The end of the dark ages": A 3-D illustration of the "Cosmological Re-ionization" process, which occurred shortly after the birth of the universe. The first stars formed and were able to re-heat hydrogen gas, turning it into transparent plasma. The first stars, grouped in proto-galaxies, created small transparent regions around them. These regions increased in size until the neighboring regions merged together and cleared up the "fog" of neutral hydrogen, making the universe transparent to star light, as it is now.

Animated Answers, Cosmology, Deep Fields, Distant Galaxies, Hubble Ultra Deep Field, SD Video, Survey, Universe Age/Size


NASA, ESA and G. Bacon (STScI)

Publication: September 23, 2004

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