sentence1: The ACS, developed jointly by four American agencies, was installed in March of 2002. It is a system of three cameras, filters, and dispersers which act to detect wavelengths of light ranging from near-infrared to ultraviolet. It is a system that was designed to last five years, according to Preston Burch, associate director and program manager for the Hubble Space Telescope. NASA also indicated that the other four main systems on the telescope remain unaffected and functioning normally. Research work will resume this week using those systems. A scheduled mission to the space telescope in 2008 is expected to deliver instruments to further upgrade the capabilities of the telescope. It is not known what the effect of the ACS failure will have on the scheduled mission.
sentence2: The ACS was designed by Preston Burch.