Learning Unlimited and its many Splash programs are co-hosting Rainstorm on May 15-16, noon to 6PM both days, for Grades 8-12. The days are packed with free, online courses taught by undergraduates, graduate students, and experts from across the country. Sign up for the course lottery by April 30, rank your classes of interest, and receive your schedule. Graduates and undergraduates can also sign up to teach. For more information, email cloud@learningu.org. The website still shows the Fall 2020 course catalog, but these STEM-related courses seem to be in the Spring 2021 under development.

• Data Structures and Algorithms
• A Battle of Forces: The Role of Inflammation in Disease
• Understanding Dark Matter
• Medicinal Chemistry I & II
• The Seeing Blind: Understanding Vision and Technological Advances

Harvard Museums of Science and Culture will present a free, online event in its Evolution Matters series, What Spiders Have to Say on April 28, 6PM-7PM. John Harvard Distinguished Science Fellow, Paul Shamble, will discuss the lives, habits, and morphologies of spiders, including sensory structures, cognition, locomotion, and behavior.

Boston’s Museum of Science will hold a free, online #MOSatHome discussion, Feeding Communities — Big Challenges, Local Actions, on April 28 at 5PM. The discussion will be moderated by Laura Reiley (Washington Post business of food reporter and will include Jen Faigel (Executive Director and Cofounder, CommonWealth Kitchen), Greg Watson (Director for Policy and Systems Design, Schumacher Center for a New Economics), and Norbert L. W. Wilson (Professor of Food, Economics, and Community, Duke University). Register here.

Harvard Museums of Science and Culture will present a free, live, online, family-friendly event, After-School Animal Encounters: Humans and Animals, on April 20, 3PM-3:45PM. Museum staff will discuss challenges that animals face and what humans can do to help. Register here to get a link to the event and to make a voluntary contribution if you wish to support HMSC.

Boston’s Museum of Science will host a free webinar, Designing a Sustainable Future, April 22 at 5PM. Register here. The panel includes:

• Joan Fitzgerald (Professor of Urban and Public Policy)
• Geraldine Barnuevo (Senior Manager Environmental Strategies and Sustainability, General Motors)
• Mass. Senator Joseph Boncore, (Chair of Joint Committee on Transportation)
• Tracy Corley (Director of Research and Partnerships, Conservation Law Foundation)

The Massachusetts STEM Summit will be held virtually on May 6, 9AM-2PM, with the theme, Inspire a STEM Start. It will include panel presentations, plenary speakers, virtual exhibitors, and opportunities for virtual networking with like-minded STEM colleagues and enthusiasts. Registration is free. For more information, email StemSummitInfo@donahue.umassp.edu.