As Supergirl, Kara Zor-El serves as the biological cousin and female counterpart to DC Comic's iconic superhero Superman, The Supergirl character first appeared in a story published in Action Comics #252 (May 1959) entitled "The Supergirl from Krypton. In a sequel to Crisis on Infinite Earths, Supergirl is recruited by Donna Troy to assist in an upcoming battle. Following a chaotic combat where Firestorm and several other heroes are apparently killed, Supergirl vanishes during the return from deep space. During this time, DC Comics renamed the monthly comic book series Legion of Super-Heroes to Supergirl and the Legion of Super-Heroes. Beginning with issue #16, Supergirl reappears in the 31st century finding she is revered as a member of the Superman family and joins the Legion of Super-Heroes. Like all Kryptonians under a yellow sun, the current version of Kara Zor-El possesses vast superhuman strength, speed, and stamina; invulnerability; flight; super breath; x-ray vision; telescopic and microscopic vision; freeze breath; heat vision; and super hearing. The modern day Kara Zor-El is also a capable martial artist, having trained with both the Amazons and the New Gods of Apokolips. And believe it or not, I actually know a blonde girl really named Kara in real life, what a trip.