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One swath, known as the Hubble Deep Field North, was originally examined by Hubble's wide-field and planetary camera in late 1995 and has recently has been scanned by an even more-sensitive instrument, Hubble's Advanced Camera for Surveys, installed 2 years ago. 5 days of observations with the recently installed Advanced Camera for Surveys on the Hubble Space Telescope, is several times as sensitive as the Hubble Deep Field images (SN: 3/1/03, p. BODY OF EVIDENCE Using one of these large-format infrared cameras on a high-precision telescope in Parnal, Chile, astronomers recently examined the Hubble Deep Field South, a patch of sky that previously had been viewed for a solid week in visible light by the Hubble Space Telescope. |
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