In Season 1, Episode 7 "Goodnight Mars," during the last half, Emma is flashing back to her early career after she found out she was expecting, she was selected to fly a NASA T-38 Talon jet trainer. In the scene, a real NASA T-38 is seen (with F.A.A. tail # N909NA seen and still in service to NASA as of 2020).
The french song and the end of the episode is from the french singer Pomme and it's name is 'On brûlera' (We burn)