which Sela, the daughter of Tasha Yar, is introduced References Further reading "The Making of Yesterday's Enterprise", by Eric A. Stillwell External links Revisiting Star Trek TNG: Yesterday’s Enterprise by James Hunt on Den of Geek Star Trek: The Next Generation (season 3) episodes 1990 American television episodes Television episodes written by Ronald D. Moore Star Trek time travel episodes Alternate history television episodes Television episodes about space warfare