In the previous episode, we introduced the history and scientific part of the DART project and explored different approaches to defend the earth. In this episode, we keep on the conversation with astronomer Po Yen Liu about the issues within space security, and push further to discuss the ethical problem about space development.

As space becomes increasingly important to our daily lives, it's critical that we understand and address the security risks. In this first of our Spin-Off Series, we are joined by astronomer Po Yen Liu to discuss space security and the DART project.