herocomplex.latimes.com — Northstar, Marvel's first openly gay superhero, is going to tie the knot with his boyfriend in mainstream comics' first same-sex wedding in an upcoming issue of "Astonishing X-Men." The announcement comes on the heels of DC co-publisher Dan DiDio's revelation that an iconic DC character will reveal he is gay in a June issue, joining prominent lesbian character Batwoman beneath the rainbow banner.