Supergirl is a fictional superhero appearing in American comic books published by DC Comics. She was created by writer Otto Binder and designed by artist Al Plastino. Supergirl first appeared in a story published in Action Comics #252 titled “The Supergirl from Krypton.” Take a look below for 25 more fascinating and fun facts about Supergirl.

1. She was born Kara Zor-El and she’s the biological cousin of the superhero Superman.

2. Supergirl’s occasional love interesting, “Bronco” Bill Starr, was secretly her pet, comet the super-horse, an immortal centaur cursed by a witch.

3. When Supergirl obtained a Red Lantern Ring, her strength and power almost doubled.

4. Superman says that Supergirl may appear more powerful than him because he has spent a lifetime subconsciously suppressing his powers to avoid harming others while Kara, without such experience, recklessly uses her powers to the fullest.

5. Jason Todd once broke Supergirl’s grip on him. She claimed that no human could be that strong. He also snuck away from her despite her super hearing.

6. Supergirl once sold Kryptonian technology to Batman and used the money to buy her very first apartment.

7. She has the ability to see people’s DNA. Supergirl revealed this to Shay Veritas after Veritas denied her own identity.

8. Wonder Girl, Supergirl and Starfire are all honorary Amazons.

9. When Ambush Bug saw Supergirl for the first time, he thought that she was Superman trapped in a woman’s body.

10. With the epic battle against Anti Monitor during the crisis of Infinite Earths, Supergirl steps in and throws everything she’s got at the super villain. But, when she pauses to urge Superman to run, the Anti Monitor obliterates her.

11. Kara Zor-El is the last survivor of Argo City which had survived the explosion of the planet Krypton. Kara is sent to Earth by her father so her cousin Kal-El can help her survive. She’s adopted by Fred and Edna Danvers and becomes known as Linda Lee Danvers on Earth.

12. Like all Kryptonians under a yellow sun, the current version of Kara Zor-El possesses vast superhuman strength, speed, stamina, invulnerability, flight, super breath, x-ray vision, telescopic vision, microscopic vision, freeze breath, heat vision and super haring.

13. A continued exposure to a yellow sun will slowly increase her abilities and strength.

14. There are numerous alternate versions of Supergirl, the most notable of which is Power Girl who first appeared in All Star Comics #58.

15. Power Girl is the Earth-Two counterpart of Supergirl and the first cousin of Kal-L, who is the Superman of the pre-Crisis Earth Two.

16. In the first comics, Supergirl promised Superman that she would keep her existence on Earth a secret, so that he may use her as a secret weapon, but that didn’t stop Supergirl from exploring her new powers covertly.

17. She acted for 3 years as Superman’s secret weapon, until she was introduced by her cousin to an unsuspecting world in Action Comics #285.

18. Linda Danvers would have many professions, from student, to student advisor, to actor, to TV camera operator.

19. The idea of killing Supergirl was first conceived by DC’s vice president and executive editor Dick Giordano, who lobbied for the death to DC’s publishers. He stated that, “Supergirl was created initially to take advantage of the high Superman sales and not much thought was put into her creation. She was created essentially as a female Superman. With time, writers and artists improved upon her execution, but she never did really add anything to the Superman mythos, at least not for me.”

20. In 1989, in the tale “Christmas with the Super-Heroes” the soul of Kara appears to Boston “Deadman” Brand, cheers him up, and then disappears from continuity until 2001.

21. Several characters unrelated to Superman would take on the Supergirl persona, including Matrix, a shapeshifting genetically engineered life form that defaulted as Supergirl, Linda Danvers, the result of Matrix merging with the dying Linda Danvers and becoming an Earthbound angel of fire, and Cir-El, Superman’s apparent daughter from a possible future.

22. In the Linda Danvers’ Supergirl series insuses 48 and 49 in 2001, the original Kara appears as Linda’s guardian angel. Then in issues 75 and 80, a young Kara appears from an earlier time long before the Crisis.

23. Linda’s inability to ultimately save Kara is so devastating that it ends her own career as Supergirl. This story arc is usually cited as one of the best Supergirl stories ever written.

24. The modern version of Kara Zor-El made her debut in Superman/Batman #8 in 2004. Kara takes up the mantle of Supergirl at the conclusion of the storyline.

25. In 1967, Supergirl meets Batgirl for the first time in World’s Finest Comics. They developed a strong friendship and teamed up many times.