Aliases: None

Base of Operations: Metropolis, formerly Themyscira, New Krypton

First Appearance: Action Comics I #252 (May, 1959)

Powers: Supergirl, like all Kryptonians, gained superhuman powers while under a yellow sun. She had incalculable levels of superhuman strength and invulnerability. Supergirl possessed the powers of heat-vision, x-ray vision, telescopic vision, superspeed and flight. She was vulnerable to magic, as well as kryptonite, radioactive pieces of her homeworld Krypton.

Powers: Supergirl, like all Kryptonians, gained superhuman powers while under a yellow sun. She had incalculable levels of superhuman strength and invulnerability. Supergirl possessed the powers of heat-vision, x-ray vision, telescopic vision, superspeed and flight. She was vulnerable to magic, as well as kryptonite, radioactive pieces of her homeworld Krypton

History: Kara was the daughter of Zor-El, a great scientist who'd saved Argo City from the destruction of Krypton. Argo City was encased in a weather-proof plastic dome, and when the ground was converted into anti-kryptonite, Zor-El sealed it off with lead. A meteor struck the city, penetrating the lead shield, and dooming the city. Kara, now a teenager, was rocketed to Earth by her parents. They knew her cousin Superman had been sent to Earth when Krypton exploded, and they hoped he could help her adapt to her new planet. Alura made Kara a costume similar to Superman's, and on Earth she was known as Supergirl.

(Action Comics I #254) - Linda Lee spotted an army space rocket whose steering mechanism had malfunctioned, and after changing into Supergirl she righted it’s course. Miss Hart introduced the Midvale orphans to Mom and Dad Dale, who were looking for a child to adopt. Linda wasn’t ready to be adopted, fearing that if she was her new parents would find out she was Supergirl, and superman had given her orders to keep her existence a secret. The Dales chose Linda, and drove her to the traveling circus they operated. They had a strong girl act put together for Linda, and during her first performance she lifted a large barbell that was actually made of hollow wood and won a tug-of-war contest with an elephant thanks to an invisible thread from the rope being connected to a winch. Linda realized her act was in service of a grift; the Dales sold the excited crowd a Power Tonic they claimed would make them as strong as Linda. Linda tried to think up a plan to expose the Dales, and the next day the Dales’ elephant took a spill and would have crushed them if not for Linda quickly uprighting the beast. She claimed she’d gotten into the Power Tonic, and the Dales were convinced their chemist had accidentally concocted a real superstrength serum. They paid the chemist all their ill-gotten gains for the tonic recipe, but returned home to find the tonic was useless. They dared not go to the police because the chemist could expose their scam. Linda had actually gotten the chemist out of his office with a phone call and created a realistic puppet version of him that she made “talk” with super-ventriloquism, and afterwards she flew around the town, secretly returning money to every customer the Dales had tricked. The Dales, now broke, couldn’t afford to adopt Linda, and she returned to Midvale.

(Action Comics I #255) - Superman sent Linda a note written in microscopic print so only she could read it, and he praised her training thus far, encouraging her to practice flying at superspeed and breaking through the time-barrier. Supergirl traveled 100 years into the future into the 21st Century, and was amazed to see domed cities built on asteroids. She witnessed a U.S. space probe from her own time crash through an asteroid city’s glass dome, and used her heat-vision to repair the damage. The probe was about to fall on a space orphanage, and Supergirl flew to the rescue, but young orphan Tommy used his latest invention, an anti-gravity gun, to deflect it. Supergirl had the misfortune to wander near a kryptonite meteor, and as it sapped her powers she collapsed into a nearby bush. Tommy took his friend Jik out to show him more of his latest inventions, and he used a changer ray to turn the kryptonite into ice, unwittingly saving Supergirl’s life. Supergirl was grateful and wanted to repay Tommy so she flew overhead, observing the boys. They ran into a large beast of prey, but Tommy handled it with a hypno-gun, and when they wandered into quicksand Tommy extricated them with his sky hook, and Supergirl realized she didn’t need to save Tommy, who was great at getting himself into and out of danger. The headmaster of the orphanage told Tommy a famous scientist and his wife wanted to adopt the boy with the best scientific mind, and he’d recommended Tommy. The orphan was overjoyed, and Supergirl finally got to pay him back by saving the scientist and his wife, whose ship had gotten trapped in a cluster of mirror meteors. Tommy was overjoyed to meet his adoptive parents, and took their last name as Tommy Tomorrow. Supergirl returned to her own time to write about meeting Tommy tomorrow in her diary.

(Adventure Comics I #304) -The Legion were set to have their annual vote to elect a new leader, and Saturn Girl was the first to arrive at the Clubhouse. A crystal capsule sent from the Trylop Council of Mernl dropped from the sky warning that their computers predicted a Legionnaire would die using their powers during an upcoming invasion of Earth by Zaryan the Conqueror, and Saturn Girl resolved to sacrifice herself to protect her fellow Legionnaires. She used her thought control to nudge the Legion into electing her leader, then used a rainbow bar from their treasury to make medallions with her face printed on them, and demanded every Legionnaire wear one. She demanded the Legionnaires demonstrate effective use of their powers, and was able to temporarily duplicate each member of the Legion’s powers using the medallions they wore, and proceeded to forbid them for using their powers or going on missions during a probation period because she declared they were not using their powers properly. When Zaryan began his invasion of Earth she responded, and warned the other Legionnaires not to follow her because they were on probation. The Legion thought she’d gone mad with power, but Mon-El had observed her actions from the Phantom Zone, and knew her motivations. Sunspots interfered with him communicating with the Legion, but when they lifted he filled in Lightning Lad on the situation, and he flew into space, determined to keep Saturn Girl from sacrificing herself. He blew up Zaryan’s ship with his powers, but was fatally shot with a freeze-ray. The Legion honored him by placing him in a glass coffin with lightning generated over it by a perpetual motion device, and his funeral was attended by Superboy, Supergirl and Lori Lemaris. The Legion placed a statue of Lightning Lad in their Clubhouse as a tribute to the first Legionnaire killed in action.

(DC Comics Presents #28, 29) - Superman recruited Supergirl to deal with Mongul, a star-spanning conqueror who’d acquired Warworld, a planetary-sized satellite equipped with doomsday weapons. Mongul activated Warworld, and was commanding it using the central command control helmet. Warworld’s weaponry injured the heroes, and they realized it might be too powerful for them to deal with. Superman deduced that the more weapons were used, the more the control helmet put a strain on Mongul’s mind, so they forced him to keep throwing missiles at them until Mongul’s mind burnt out. Warworld continued to function on auto-pilot, so Supergirl flew at the speed of light and punched a hole through its command center. Superman entered Warworld to find Mongul vanished, and reprogrammed Warworld’s computers, causing it to self-destruct. He flew away from the explosion, but could find no sign of Supergirl. Superman reasoned that Kara had been knocked out when she punched through Warworld, and calculated her trajectory. He flew faster than the speed of light, faster than infinity, and found Supergirl hurtling through space. The Spectre halted him and returned him to his own universe, telling him there were realms no man was meant to see. The Spectre taught Superman that he was using his power without conscience, which could have disastrous results. Spectre told him that if he had kept up his pursuit of Supergirl he would have pierced Heaven itself. Superman realized his error, and the Spectre was pleased that he’d shown he was on the path towards wisdom, so he returned Supergirl to him.

(Supergirl II #16) - Supergirl caught a derailed train, but still made her date with Phil Decker, who found her a place to eat that served pastrami that reminded her of NYC. She went to class as Linda Danvers, and Dr. Metzner impressed her by straightening out his office. He'd just jammed his papers into his file cabinets, and refused to let Linda open them. Phil called her to cancel their next date, because a bandit who'd been stealing famous music instruments had taken his star Miles' Stradivarius. She went to investigate as Supergirl, and ran into the newly escaped Ambush Bug. Ambush Bug thought she was Superman, somehow transformed into a woman. She tried to make sense of Ambush Bug, but he also feared she had amnesia. She tried to apprehend him, but he kept teleporting away. Eventually he teleported into Chicago Symphony Hall, where the bandit was holding Phil hostage. He'd went on his crime spree to collect enough famous instruments to perform a symphony, and was forcing Phil to conduct it at gunpoint. Supergirl easily dealt with him, and put boxing gloves on Ambush Bug's hands so he couldn't activate his teleportation circuitry. Ambush Bug finally realized Supergirl wasn't Superman, and as he was being taken away by the police he saw her in her Danvers identity, and told her she looked better as a blonde.