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Cosmology

Cosmology

The most distant object in theuniverse

16 Apr 1999

The Hubble Space Telescope has pinpointed the most distant galaxy ever observed. Kenneth Lanzetta, Hsiao-Wen Chen and Sebastian Pascarelle from the State University of New York at Stony Brook detected the galaxy at ultraviolet wavelengths using the Space Telescope Imaging Spectrograph. The galaxy has a redshift of 6.68, which means that we are seeing it as it existed when the universe was only 5% of its present age (Nature 398 586).

Galaxies with extremely large redshifts are hard to detect as the radiation they emit shifts to lon

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