Landsat 5, operating with its solar array in fixed position, is now downlinking data to all of its international ground stations (IGS) with the exception of Kiruna, Sweden.
+ Landsat 5 operating with solar array in fixed position
Ten Years of TIRS: Data for a Thirsty World
Landsat 8 very nearly flew without a thermal infrared sensor. This is the backstory of how TIRS made it onto Landsat 8.