She is the biological cousin of Superman, and although chronologically older than him, the ship in which she traveled to Earth was caught in a large green Kryptonite meteorite which held her in a state of suspended animation for much of the journey, making her have the appearance of a 16-year-old girl.
Superman however spent decades growing up on Earth. Making Clark Kent at the beginning of his career in his mid twenties, but in most versions when he meets Supergirl it's when he's already in his thirties. While when Supergirl wakes up she's still biologically not even pass 20 year old.
Superman is born Kal-El on the alien planet Krypton. His parents, Jor-El and Lara become aware of Krypton's impending destruction and Jor-El begins constructing a spacecraft to carry Kal-El to Earth. During Krypton's last moments, Jor-El places young Kal-El in the spacecraft and launches it.
In the long history of the DC Universe, one of the most powerful beings to ever exist is, naturally, the daughter of Superman and Supergirl. But since the two heroes are Kryptonian cousins, their superpowered offspring has a forgotten Superman-family replacement to thank for her creation.
She was roughly 25 when she donned Supergirl's colorful costume and she is now about 30 years old when Supergirl season 6 begins. There's a significant discrepancy with her age since Kara is actually much older than 30 - in Krypton years, Kara Zor-El is 54 years old.
Unlike the traditional Supergirl, Kara is born before Superman; she is a teenager when he is a baby. She is sent in a rocket in suspended animation to look after the infant Kal-El; however, her rocket is caught in the explosion of Krypton and becomes encased in a Kryptonite asteroid.
In summary, Supergirl has significantly more potential than Superman, but whichever Kryptonian has more yellow star radiation will have access to even greater powers. Ultimately, neither hero is limited by their build, their age, or even their training.
Created in his mold was Sheena, Queen of the Jungle. She is one of DC's oldest active characters, beating out Superman by mere months. Sheena is also unique for being the first female character to get her own title. As is typical for this character type, she is an orphan of an explorer who died in the jungle.
In Peter David's Supergirl series, this Linda Danvers finds herself in another alternate reality with a Silver Age Superman. When he discovers that this Supergirl isn't really his cousin, they fall in love and get married.
What is the age gap between Superman and Supergirl?
Superman however spent decades growing up on Earth. Making Clark Kent at the beginning of his career in his mid twenties, but in most versions when he meets Supergirl it's when he's already in his thirties. While when Supergirl wakes up she's still biologically not even pass 20 year old.
Kara-Zor-El, also known as Supergirl and Linda Lee Danvers, is a Kryptonian superhero based in Midvale and later San Francisco, New Athens, New York City and Chicago. She is the cousin of Superman, and for a long time served as his "secret weapon".
Phantom, the first costumed, fictional superhero, known as “The Ghost Who Walks.” Comics scholars generally agree that Superman was the first true superhero of the comic books, clearly marking the entrance of a new kind of hero into the marketplace.
Doctor Occult didn't just precede Superman — he was made by the same creative team, Jerry Siegel and Joe Shuster. As a matter of fact, he is widely considered to be DC's — then National Publications — first superhero character, despite Superman really ushering in the genre.
Supergirl is the superhero name of Kara Zor-El, cousin to Superman. She was created by writer Otto Binder and designed by artist Al Plastino in 1959, and she first appeared in Action Comics, in whose first issue Superman himself was introduced.
In the comic continuity no, Supergirl has never canonically had any biological children. In fact, it was only very recently that her distant relative Kal-El had a son with Lois Lane under the name of Jonathan Kent.
Zor-El would often share his work with Kara, fondly acknowledging her as a fellow scientist. However, Zor-El was also revealed to be a ruthless pragmatist if necessary. To fight against potential alien invasions, he created the Medusa virus to eradicate all life other than Kryptonians on a large scale.
Alura is the Kryptonian daughter of In-Zee, wife of Zor-El, mother of Supergirl, and paternal aunt (by marriage) of Superman. Created by writer Otto Binder and artist Al Plastino, the character first appeared in Action Comics #252 (May 1959).
