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Official Site: Marvel

Nova (Sam Alexander) is a fictional superhero appearing in American comic book published by Marvel Comics. The character, a space-faring member of the intergalactic police force known as the Nova Corps, was created in 2011 by writer Jeph Loeb and artist Ed McGuinness, based on the original Nova Richard Rider. The Sam Alexander version of the character first appeared in the Marvel Point One one-shot in November 2011 before starring in his own series beginning in February 2013.

Sam Alexander first appeared in Marvel Point One #1 (November 2011), created by writer Jeph Loeb and artist Ed McGuinness. The character was named after Loeb's son, who died after a three-year battle with bone cancer at the age of 17.

Sam Alexander is a thirteen-year-old living in Carefree, Arizona with his father, mother, and little sister. His father is always drunk and often talks about his supposed life as a Nova Centurion, and shirks his duties as janitor at his son's school. Sam's mother is a Latina homemaker. When Sam comes home from school to find his father missing, Sam accidentally injures himself and wakes up in a hospital. There, Rocket Raccoon and Gamora reveal Sam's father really was in the Nova Corps. After putting on his father's helmet, Sam travels to the moon, meeting Uatu the Watcher, who reveals an invasion fleet of alien ships belonging to the Chitauri. Upon returning to Earth, Rocket Raccoon and Gamora train him and tell him to scout the fleet.

Sometime later, Sam is on a mission to warn planets in the path of Dark Phoenix is coming for them. He crashes on Earth, but is able to deliver the warning to the Avengers. After recovering, Nova joins the Avengers and the X-Men against Cyclops, who has become the new Dark Phoenix after Jean. Thor asks Sam to join the Avengers, and Sam eventually accepts. Afterwards, he encounters the previous Nova's recurring enemy Diamondhead, but easily defeats him.

Nova (Sam Alexander) has not been a contender in any CBUB matches.