The Massachusetts Academy closes permanently in "Generation X" #75 (June 2001). Shortly thereafter, the school for young mutants is reopened at the X-Mansion, but the name remains "The Xavier Institute for Higher Learning" despite the younger student body. The fourth generation of mutant teenagers, featured in Grant Morrison's "New X-Men" (2001–2004) and in "New Mutants" (2003–2004; relaunched as "New X-Men: Academy X", July 2004 – February 2008), study at the mansion until it is destroyed during the 2007–2008 story "Messiah Complex" and the X-Men subsequently disband and close the Institute.