Paul Dalba is a research scientist at the SETI Institute and a 51 Pegasi b Fellow of the Heising-Simons Foundation. He is the PI of the Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey, a program at Keck Observatory and Lick Observatory to measure the masses and interior compositions of giant exoplanets and also an astronomer for the citizen science program of Unistellar.
Seth Shostak is the Senior Astronomer at the SETI Institute in Mountain View, California. Inspired by a book about the solar system he read at the age of ten, he began his career with a degree in physics from Princeton University and a PhD in astronomy from the California Institute of Technology. He has published four books, nearly 300 popular articles on astronomy, technology, film and television and gives frequent talks to both young and adult audiences.