In the hit sci-fi show “Stranger Things,” the character Eleven possesses extraordinary powers of telekinesis and is taken in by a group of friends after escaping from a laboratory. Eleven embarks on a journey to find her biological parents and her past, leading to a discovery about her mother’s involvement in a mysterious government experiment.

During the show’s first season, it is revealed that Eleven was taken away from her mother at birth after being born in a laboratory. Her mother, Terry Ives, is portrayed as a troubled and emotionally unstable woman who was also a test subject in the same government experiment that led to Eleven’s birth.
Terry was a college student in the late 1960s who volunteered for an experiment that claimed to enhance mental abilities. However, the experiment left Terry traumatized and convinced that her child had been taken away from her.
Through psychic visions and flashbacks, Eleven learns more about her mother’s past and the extreme torture Terry endured in the laboratory. Despite being left in a vegetative state, Eleven is able to connect with her mother through her telekinetic abilities.
In the show’s second season, Eleven goes on a quest to find her mother and learn more about the experiment. She is aided by her friends and adoptive father, Jim Hopper, who help her track down Terry’s sister, Becky Ives.
Eventually, Eleven is reunited with her mother, but their relationship is complicated by Terry’s brain damage and inability to communicate.
In conclusion, Eleven’s biological mother is Terry Ives, a college student who volunteered for a government experiment in the late 1960s. Terry gave birth to Eleven during the experiment, but she was taken away from her mother shortly after her birth and raised in a government laboratory. Despite the trauma Terry endured and her complicated relationship with Eleven, their reunion sheds light on the experiment that brought Eleven into the world.