Supergirl

Kara Zor-El is Superman's cousin, and she remembers the home he never knew. She grew up in Argo City, a piece of Krypton that survived the planet's destruction and drifted through space under a covering of lead. When a meteor strike broke that shield, her family sent her to Earth. Under a yellow sun she has the same gifts as her cousin: flight, enormous strength, speed and heat vision. On Earth she took the name Linda Lee and was raised by the Danvers family, learning to pass as an ordinary girl while she worked out what kind of hero she wanted to be. She has never been content as a smaller copy of the Man of Steel, and she carries the loss of Krypton differently, because for her it was a real place full of people she knew. In the greatest crisis the multiverse ever faced she gave her life to save her cousin and all of reality. Versions of Kara have returned many times since, each one proving that the S on her chest belongs to her too.