Not much is known about her past. What is known is that in 1996 she graduated from Caltech. She joined the Atlantis expedition in 2008 with the hope of exploring other planets and interacting with the people. She was chosen to join Major Anne Teldy's team.
On one mission, she encountered a Wraith lab operated by Michael Kenmore before he abandoned it. When the team requested help from Lt. Colonel John Sheppard and the clone of Dr. Carson Beckett, she grew fond of Carson, who also grew fond of her. She was being stalked by Michael's experiments but, with help from her team, was eventually able to take them all down. She then went back to Earth for some down time but Beckett requested her as part of this team when she returned. (SGA: "Whispers")