Alexander MacDonald

Director - Emerging Space Office · NASA

Alexander MacDonald is recognized as an expert on the economic history of American space exploration.

Commercial Spaceflight Future of Space Exploration Space Policy

Tanya Harrison

Director of Science Strategy · Planet Labs

Professional Martian who has worked on rocks and robots on the Red Planet.

Space and Astrophysics Climate Change Satellite Based Remote Sensing of the Earth/atmosphere System Earth Science Women in STEM Careers