Space.com: Hubble Space Telescope: Pictures, facts & history

The 1997 mission replaced some failed or degraded hardware and installed two new instruments, the Space Telescope Imaging Spectrograph (STIS) and the Near Infrared Camera and Multi-Object Spectrometer. The new instruments, which replaced the GHRS and FOS, extended Hubble's vision into the near-infrared wavelength range, NASA officials wrote in a servicing mission explainer.