Today’s Hours


Observatory Volunteer

Share your passion for all things astronomical by volunteering in the Crosby Ramsey Memorial Observatory, located on the rooftop of the Maryland Science Center. This position involves assisting Observatory Staff in running public programs. Volunteers will use a computer-controlled telescope to assist guests as they view the sun, moon, stars, planets and other astronomical events.


  • Usher guests to/from the Observatory
  • Provide general explanations to guests regarding astronomy topics
  • Engage guests waiting in line in the Observatory; offer them a general idea of what to expect
    • Locate sunspots on The Sun
  • Operate main or subsidiary telescopes
  • Facilitate activities for guests

Required Knowledge/Skills:

  • Ability to speak to and deal with public in courteous and friendly manner
  • Outgoing; at ease with people of all ages
  • Prior knowledge of astronomy and telescopes

Physical Requirements:

  • Ability to ascend and descend stairs to and from the Observatory

Training: Will be provided by Observatory staff. You’ll learn how to run the 1927, 8″ Alvan Clark refracting telescope, as well as other telescopes at our disposal.

Schedule: Must be able to assist at least once a month for Friday evening or Saturday afternoon public viewing (more if you can). As with anything related to observing the sky, all Observatory volunteer shifts are weather dependent.


Please contact our Volunteer Coordinator, by phone 410-779-1627  or email volunteers@mdsci.org to find out if the position you’re interested in is accepting volunteers at this time.