Hubble Space Telescope (HST) was launched into orbit OTD in 1990 on Space Shuttle Discovery.
This is the HST astropic image of the Coral Reef to mark 30 years:
|Credit: NASA, ESA, STSCI|
HST is still making observations so many years later and should last for a few more years. Eventually its orbit will decay requiring a controlled reentry.
Sky Guy in VA