The PANDA Symposia series are aiming at establishing and fostering collaborations among young postdoctoral fellows (0-6 years from graduation) from the Pacific/Asiatic scientific community with their peers across the globe. Besides enabling scientific mobility and networking, we are also aiming in providing young researchers with a forum to exchange ideas on current and future projects. The Symposia takes place every 2-3 years and have been successfully held twice. A major goal of the PANDA series is to enable scientific and cultural interactions and mentoring across the international borders. The first and second meetings were very successful, with the students expressing their strong desire for the continuation of the Symposia. We, therefore, formed a scientific board comprising members from the broad international astrophysics community, which has provided guidance on the organization of the 3rd PANDA Symposium. In particular we wish to thank the International Union for Pure and Applied Physics (IUPAP) who has supported the Symposium and provided many of the SOC members for the organization.