To buy tickets for LSC after dark events, visit the official liberty science center website. Navigate to the Events or liberty science center after dark section to find upcoming events. Select your desired event, review the details, and click on the "Buy Tickets" option. Follow the prompts to choose the number of tickets, provide attendee information, and proceed to checkout. Payment methods may include credit cards or digital wallets. After completing the purchase, you'll receive a confirmation email with your e-tickets. Ensure to check for any age restrictions or additional guidelines before attending the event.