Back to Chats with Change Makers episodes Margaret Dominguez and Stephanie Hernandez Tiffany chats with two engineers who work on the James Webb Space Telescope! Margaret Dominguez, Optical Engineer at NASA, and Stephanie Hernandez, Systems Engineer at Northrop Grumman. Save At-home activities Launch It Design and build an air-powered rocket that can hit a target 5 feet away. View activity Pen Factory Design the most efficient way to assemble as many pens as possible in 2 minutes flat. View activity Explore more at-home-activities Explore more STEM Careers STEM Activities Get Discover Engineering news delivered to your inbox! Campaign Monitor – DE News & Programs – Web Sign Ups (#8)First NameLast NameEmail addressWhat roles best represent you?Click list again to add more than oneEducatorEngineerother STEM ProfessionalParentStudent (10-12; University)