From creationsafaris
More Hints at Early Origin of Stars, Galaxies 03/31/2006
Several articles this month showed further evidence for a growing realization in astronomy: stars and galaxies were already mature at the beginning of the universe (see, for instance, 09/21/2005 entry).
Some recent examples:
Spitzer Clusters: JPL issued a press release stating that the Spitzer Space Telescope, on a “cosmic safari,” found evidence for clusters of galaxies 9 billion years old. In the standard dating scheme, this was when the universe was a “mere” 4.5 billion years old.
Swift GRBs: Astronomers reported in Nature1 the discovery, by the Swift satellite, of the earliest gamma-ray burst ever found. “This means that not only did stars form in this short period of time after the Big Bang,” they said, “but also that enough time had elapsed for them to evolve and collapse into black holes” (emphasis added in all quotes).
Ubiquitous Galaxies: A press release from the journal Astronomy & Astrophysics announced “Ubiquitous galaxies discovered in the Early Universe.” Observations in far-ultraviolet and near-infrared found galaxies at redshift z=6.7, assumed to be within 5% of the birth of the universe. Most of them were spirals, not irregulars as theory had predicted.
In the last of a 36-part series of lectures on 20th century science produced by The Teaching Company,2 Dr. Steven L. Goldman of Lehigh University listed this as one of the major challenges facing scientists in the 21st century.
More Hints at Early Origin of Stars, Galaxies 03/31/2006
Several articles this month showed further evidence for a growing realization in astronomy: stars and galaxies were already mature at the beginning of the universe (see, for instance, 09/21/2005 entry).
Some recent examples:
Spitzer Clusters: JPL issued a press release stating that the Spitzer Space Telescope, on a “cosmic safari,” found evidence for clusters of galaxies 9 billion years old. In the standard dating scheme, this was when the universe was a “mere” 4.5 billion years old.
Swift GRBs: Astronomers reported in Nature1 the discovery, by the Swift satellite, of the earliest gamma-ray burst ever found. “This means that not only did stars form in this short period of time after the Big Bang,” they said, “but also that enough time had elapsed for them to evolve and collapse into black holes” (emphasis added in all quotes).
Ubiquitous Galaxies: A press release from the journal Astronomy & Astrophysics announced “Ubiquitous galaxies discovered in the Early Universe.” Observations in far-ultraviolet and near-infrared found galaxies at redshift z=6.7, assumed to be within 5% of the birth of the universe. Most of them were spirals, not irregulars as theory had predicted.
In the last of a 36-part series of lectures on 20th century science produced by The Teaching Company,2 Dr. Steven L. Goldman of Lehigh University listed this as one of the major challenges facing scientists in the 21st century.