Presented by the Academy of Science St. Louis Learn about science happening in our community. Discover a different in-depth topic each month from local scientists in St. Louis. Adults and teens. Registration required. This month's topic -- Venus: The Volcanic World Hidden Beneath the Clouds Featured Scientist: Rebecca Hahn, Ph.D. Candidate in Earth and Planetary Sciences, Department of Earth and Planetary Sciences, Washington University in St. Louis Did you know that Earth’s sister planet is home to at least 85,000 volcanoes? Using 30-year-old radar imagery, Washington University planetary scientists Rebecca Hahn and Paul Byrne created the most detailed and comprehensive map to-date of volcanoes on Venus. This new map will allow scientists to think about where else to search for evidence of recent geological activity and will improve our understanding of how volcanoes form and evolve across the surface of our closest planetary neighbor.