Abigail Harrison is known as “Astronaut Abby”, and she set a goal at a very young age to be the first person ever to set foot on Mars. Her path has led her to becoming a major advocate for STEM and particularly STEM education for girls and marginalized groups—people historically left out of the space conversation. She's built a following of over a million, and I could spend a long time singing her praises.

• Follow me: @therosspalmer
• Watch this interview on YouTube.
• See all episodes: beattheoftenpath.com