Trajectory is Eliza Harmon, a superhero with enhanced speed powers. She received her powers through Lex Luthor's Everyman Project during the events of 52, and became a member of the second Infinity, Inc.. Tragically, she was killed by Blockbuster very quickly into her career.
Trajectory was created by Geoff Johns, Grant Morrison, Greg Rucka, and Mark Waid, first appearing in 52 #17. (2006)