Female Thor Explained: How Jane Foster Became Worthy

Jane Foster might be known as one of Thor's love interests in Marvel Comics but she eventually took on the mantle as Female Thor. Jane's transformation into the Goddess of Thunder will occur in the upcoming Marvel Cinematic Universe movie, Thor: Love and Thunder. But how did Jane become worthy enough to wield Mjolnir?

Jane's first comic book appearance occurred in 1962 with Journey into Mystery #84 as a nurse for Dr. Donald Blake. Jane found herself stuck in a love triangle with Blake and Thor, not realizing that they were the same man: Blake was Thor's mortal host. Thor later took Jane to Asgard where she was granted immortality, but Odin later stripped her of those powers believing she wasn't courageous enough to harness them and sent her back to Earth with no recollection of her time on Asgard.

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Throughout Thor's history in Marvel Comics, Jane Foster remained a supporting character. She eventually became a doctor and married Dr. Keith Kincaid. Even though she was married to another man, Jane continued her involvement in the life of Thor and his various conflicts. During the Civil War story arc, Jane took Captain America's side and joined in assisting the Secret Avengers. Thor appointed Jane as the Midgard representative in the Congress of the Worlds. Shortly after, Jane went through a number of life changes, including her notable stint as Female Thor.

How Jane Foster Became Female Thor

In Thor Vol. 4 #1, the God of Thunder lost his ability to wield the hammer. When the Avengers battled Nick Fury, the man whispered something in Thor's ear, causing him to become unworthy of Mjolnir. The hammer stayed on the Moon as Thor, and even Odin, couldn't move the mystical object. By the end of the comic book issue, an unidentified female character arrived on the Moon and lifted the hammer as the inscription on the weapon changed to: "Whosoever hold this hammer, if she be worthy, shall possess the power of... Thor."

It was eventually revealed that, while Thor's hammer was still on the Moon, it telepathically sought out Jane. She asked Heimdall to take her to the hammer's location so he transported her to the Moon. When Jane picked up Mjolnir, she instantly transformed and gained Thor's powers. Jane decided to keep her identity as Female Thor a secret but it drove the original Thor crazy not knowing who took control of the hammer.

Female Thor jumped right into the action, getting in the middle of the tension between Malekith the Accursed and the Frost Giants. It was during that conflict when Thor found his successor and demanded that she return the hammer. He later backed off when he realized Female Thor was worthy enough to handle the responsibilities. Thor gave his blessing to Female Thor, relinquishing his name and his hammer. From then on, he went by the name Odinson.

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Odin also tried to retrieve the hammer by using his brother Cul Borson, the God of Fear. After he was equipped with the Destoyer's armor, Cul targeted Female Thor. Odinson called upon Freyja and an army of women to assist Female Thor in Cul's attack. Jane's identity as Female Thor remained a secret to Asgard and the rest of the world. She later fought during the Secret Wars comic book storyline and served as a member of the Avengers. Foster coincidentally remained as a senator in the Congress of Worlds to avoid suspicion with her alter-ego.

Jane Foster's Powers As Female Thor

When Jane lifted Mjolnir as Female Thor, she acquired all of Thor's superhero powers. Through the hammer, Female Thor had the power of flight as well as interdimensional transportation. She was additionally able to manipulate electricity and weather. Jane's new identity as Female Thor also greatly transformed her physical appearance; every time she lifted the hammer, Mjolnir increased her strength and gifted her a helmet with long blonde hair and a costume that stood as a female equivalent to Thor's iconic look.

Not all the abilities were positive. Prior to Thor becoming unworthy, Jane was diagnosed with breast cancer. She refused to take part in any kind of magical treatments and instead took a chance with chemotherapy. Unfortunately for Jane, each time she transformed into Female Thor, there were adverse effects to her health. During the transformation process, the hammer purged all toxins from her body, including the radiation treatment for her cancer. The helpful drugs were subsequently emitted so Jane's conditioned worsened as cancer spread throughout her body. She eventually sought help from Doctor Strange, one of the few people who knew her true identity. He advised her to stop transforming into Female Thor as the next time could kill her.

Related: Thor Is Now Marvel’s Longest-Running Franchise

When Jane took the Thor moniker, she also took on the superhero's relentless fight for the greater good. Female Thor ignored Doctor Strange's warning and transformed a final time when the fate of the Asgardians was in danger. She bravely sacrificed Mjolnir and herself to stop the attack. Odinson finally learned of Female Thor's identity and was heartbroken to learn it was Jane. He and Odin took Jane's lifeless body to safety and managed to revive her. Odinson was able to wield the hammer again and Jane convinced him to take back the Thor mantle as she continued to focus on her chemotherapy.

Natalie Portman Plays Female Thor In Love and Thunder

In the MCU, Jane Foster will be transformed into Female Thor during Thor: Love and Thunder. The film by Taika Waititi serves as the fourth solo Thor installment, with Natalie Portman reprising her role as Jane Foster after appearing in Thor and Thor: Dark World as an astrophysicist and eventual love interest for Thor. Portman also appeared in Avengers: Endgame via archive footage during Thor and Rocket's time travel mission to retrieve the Reality Stone housed in Jane's body. Portman's involvement in Thor: Love and Thunder was confirmed at Marvel Studios' panel during San Diego Comic-Con 2019.

Next: SDCC 2019 Marvel News: Every Single MCU Reveal From Comic-Con

Key Release Dates
  • Black Widow (2020) release date: May 01, 2020
  • Eternals (2020) release date: Nov 06, 2020
  • Shang-Chi and the Legend of the Ten Rings (2021) release date: Feb 12, 2021
  • Doctor Strange in the Multiverse of Madness (2021) release date: May 07, 2021
  • Thor: Love and Thunder (2021) release date: Nov 05, 2021
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