Supergirl’s origin has been adjusted, adapted, and reinterpreted a number of times since she first appeared in 1959, but many of the core concepts have remained the same, even up through “The New 52”, DC’s big relaunch in 2011. Readers were reintroduced to Kara Zor-El, a survivor of the planet Krypton, sent to Earth just like her cousin Superman, where she would quickly take up the costumed identity of Supergirl. The biggest difference in their origin stories is that, while Superman was only a baby when Krypton exploded, Kara was already a teenager, living a full life as part of Kryptonian society. She remembers it like it was yesterday…and from her perspective, it literally was yesterday, since Kara’s ship kept her in suspended animation until waking her up on Earth, decades after her baby cousin Kal-El had already landed. Even though it’s been a lifetime since the universe lost Krypton, from her perspective it was alive and thriving just a few hours ago, and sh...