- Script
- Jim Lee (co-plot); Chris Claremont
- Pencils
- Jim Lee
- Inks
- Scott Williams
- Colors
- Joe Rosas
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- X-Men [Professor X; Cyclops; Jean Grey; Storm; Wolverine; Gambit; Rogue; Colossus; Beast; Iceman; Psylocke; Archangel; Forge; Banshee]; Nick Fury; Val Cooper; Moira MacTaggert; Magneto (villain); Chief Magistrate Anderson (villain); Acolytes [Fabian Cortez; Anne-Marie Cortez (death); Chrome (death); Marco Delgado (death); Nance Winters] (villains)
- Synopsis
- Cortez betrays his master and Asteroid M is destroyed with the X-Men escaping just in time.
- Reprints
- in X-Men (Semic S.A., 1992 series) #2 (février 1993)
- in Gli Incredibili X-Men (Marvel Italia, 1994 series) #50 (Agosto 1994)
- in X-Men: Mutant Genesis (Marvel, 1995 series) [First Printing] (1995)
- in X-Men (TM-Semic, 1992 series) #2/1995 ([luty] 1995)
- in Son of Origins of Marvel Comics Revised Edition (Marvel, 1997 series) (November 1997)
- in X-Men Vol. 2 No. 3 [Marvel Legends Reprint] (Marvel, 2003 series) (February 2003)
- in X-Men Forever Alpha (Marvel, 2009 series) #1 ([July] 2009)
- in X-Men: Mutant Genesis (Marvel, 2010 series) (2010)
- in X-Men: Mutant Genesis 2.0 (Marvel, 2012 series) (2012) [remastered and recolored]
which is reprinted- in X-Men Epic Collection (Marvel, 2014 series) #19 - Mutant Genesis (2017)
- in X-Men - La Collection Mutante (Hachette, 2020 series) #1 - Genèse Mutante (octobre 2020)
Last Chris Claremont continuous X-Men work since 1976.