The GazetteSome Colorado Springs residents are in for a show Monday night as the 31st annual Space Symposium hosts its opening ceremony. A fireworks show is set for 9 p.m. at The Broadmoor, host of the popular event. Last year, the Space Symposium set a record with an estimated 11,000 participants. For 2015, the symposium is betting on even bigger numbers with a booming international contingent. Space Symposium highlights - Monday through Thursday at The Broadmoor. - Registration to the event is nearly $2,000. - Organizers expect to top 2014 attendance record of 11,000. - Opening ceremony Monday features Japanese dance troupe Enra. - Monday offers daylong