• Registration Information

    Early Bird Registration is now available for Quarter One Programs.
    Quarter 1 Online Registration
    Quarter 1 Program Descriptions

    Check out all of our Program Descriptions for next year as you begin planning for SY2018-19. See you next year!
    Quarter 2 Program Descriptions
    Quarter 3 Program Descriptions
    Quarter 4 Program Descriptions

    HBOSC is exempt from PGCPS ADMIN PROCEDURE 6153 for field trip requirements

  • Professional Development


    SERC Science Practices and Techniques: Teacher’s Academy Climate Change and Living Fossils
    August 13th -15th, 2018 (9 am-3 pm)
    Teachers working with 3rd -12th Grades
    Cost: Free: $75/day stipend with $200 science-fair kit provided at end of 3-day course
    Who Can Register: DCPS and PGCPS teachers will be given priority, others will be put on a wait list and back-filled if there are openings
    How to register: E-mail Karen McDonald, McDonaldK@si.edu or call (443) 482.2216
    See flier for full details
  • Contact Us

  • 9601 Greenbelt Road
    Lanham, MD 20706 

     Tel: 301.918.8750
    Fax: 301.918.8753  

    Program Administrator
    Traketa Wray


    Follow us on twitter 


  • Upcoming Events

    • Planetarium Shows
      Are offered throughout the year. They usually occur on the 2nd Friday of each month. Cost is $5 for adults; $3 for teachers/seniors/students and children under 3 are free.
    • Viewer's Choice series: Maddie’s Choice- Sounds Greek to Me!
      Friday, Sept. 14, 2018
      7:15 PM Doors open
      Interactively explore Greek legends told in the sky!

      Start planning your first visit back to the planetarium this fall with our first viewer's choice selection. This year we asked several regular guests to the planetarium for  topics and they will appear under the viewer's choice selections.
  • Memory Lane: 40 YEARS


    Join us throughout 2018-19 as we reflect back together on HBOSC's 40 years of service to the community.

    Our first segment is entitled "What we love about the planetarium".