Heliosphere (science fiction convention)
heliosphere annual science fiction fantasy convention organized new amsterdam science fiction fantasy fandom inc first held march programming typical fan convention including panel discussion writing science fantasy gaming craft workshop game room dance event heliosphere guest honor writer jacqueline carey david gerrold danielle ackley mcphail special guest author dr charles e gannon artist heidi hooper held doubletree hotel tarrytown new york weekend march – notable guest panelist alex shvartsman science fiction fantasy writer editor former professional american magic gathering player paul levinson writer professor communication medium study fordham keith decandido science fiction fantasy comic book writer laura antoniou writer editor known work erotic fiction heliosphere took place doubletree hotel tarrytown new york march – guest honor eric flint charles gannon cecilia tan mark oshiro featured artist tom kidd heliosphere took place april – doubletree hilton hotel tarrytown new york guest honor charlie jane anders laura antoniou tom smith featured artist alan f beck heliosphere adventure continues nasf new amsterdam science fiction fantasy fandom inc