The New England Sci-Tech STEM education center (16 Tech Circle, Natick) will host Your Project in Space: Citizen Science Projects for Teens to enable teams of two to four in Grades 7-12 to send their science projects in a high-altitude balloon to the edge of the atmosphere. It’s scheduled for nine Saturdays: Education and building on seven Saturdays, 3:30PM-5PM March 7 to April 25 (but not April 18), then all day for balloon launch on May 2, 9, or 16, then follow-up on May 30. The program is free for paid members of New England Sci-Tech, plus a $55 lab fee for materials.