Lanning's writing has included his and Abnett's 2000 relaunch of DC's title Legion of Super-Heroes.

This led into their piloting the "Annihilation: Conquest" storyline,[3] and the core characters from this went on to form the new Guardians of the Galaxy.

[6] It was announced at Wizard World Chicago in June 2008 that Abnett and Lanning had signed an exclusive deal with Marvel, which they hoped would give them time to work on the "cosmic" characters they dealt with, as well as more earth-based ones.

[7] Their first major work which followed this was "War of Kings", which depicted the "cosmic" aftermath of Secret Invasion.

[9] In 2020 Lanning collaborated with Ron Marz on the nine-issue DC Comics crossover storyline "Endless Winter", which would debut that December.