The Discovery Museum (177 Main Street, Acton) will celebrate its 40th anniversary with an admission-free Community Day on September 10, 9AM-4:30PM. Advance registration is required for all museum visits and opens ten days ahead, or on September 1 for this event. There will be indoor and outdoor activities, mini cupcakes, and a parade.

Each year, the Red Sox welcome teachers and their students for STEM Education Day — a morning of STEM lectures and interactive exhibits (8AM-11:30AM), followed by the game at 1:35PM. This year, on September 29, the Boston 25 News Team will talk about weather and there will be an egg-drop experiment off the Green Monster, as well as exhibits by Sunovion, iRobot, JetBlue, Wasabi, Unruly Splats, Project Lead the Way, New England FIRST, and others. Tickets ($12) are for the morning plus the game.

MassRobotics will host RoboBoston, the 5th annual robot block party, on October 1, 11AM-4PM, at Seaport Common (85 Northern Ave, Boston). It’s free and open to the public.

On September 30, RoboBoston will host its School STEM Field Trip Day for schools to send groups of students in Grades 7-12 for 1.5 hours of interactive activities and demonstrations. Space is limited, and schools should apply as soon as possible.

There will also be a Robotics and AI Technical Career Fair on September 30, 4PM-6PM.

The Cambridge Science Festival will be back, in-person, October 6-9 at the Kendall/MIT Open Space (292 Main Street, Cambridge), with a different emphasis each day. Admission is free.

• October 6: Science + Climate — dedicated to all things environmental, renewable, and sustainable
• October 7: Science + Food — the latest in edible chemistry, at a “farmer’s market of the future”
• October 8: Science + Fashion — runway shows, exhibitions, discussion and interaction with designers, makers, engineers, brands, artisans, influencers and the public
• October 9: Science + Carnival — a family-friendly, science-themed, Great American Carnival, noon-4PM featuring a Main Stage, Midway, Side Shows, Walk-abouts, with “competitions and challenges, interactive engineering and hands-on experiments, design workshops and demonstrations, from telescopes to microscopes, from celestial bodies to synthetic bodies, lasers, DNA, the brain, from marine biology to biological machines, from circuit-boards to circus-shows… and very many robots!”

The Cambridge Science Festival will host Borealis — a free light-and-sound installation simulating the magic of the Northern Lights — at the Kendall/MIT Open Space in Kendall Square in Cambridge 8PM-11PM on the nights of October 6-9. The public is invited to come and go, move around, and enjoy its constantly changing aurora. The works’ creator, Dan Acher, is an international artivist based in Switzerland, an Ashoka Fellow and the founder of Happy City Lab.

The Christa McAuliffe Center at Framingham State University will host free Open Houses and evenings of stargazing and observation on September 2 and September 6, 7:30PM-9:00PM (weather permitting), in FSU’s O’Connor parking lot by Maynard Road in Framingham. Telescopes will be aimed at the Moon, Saturn, Jupiter, Albireo (double star), Mizar (star), and Epsilon Lyrae (multiple star system).

As part of the Open House, the Center will offer tours of the Challenger Learning Center and present a planetarium film, Big Astronomy: People, Places, Discoveries. Masks are required indoors. For more information, email cmc@framingham.edu.

The McAuliffe Center recently received $5 million in state funding for a major redesign project to create five multifunctional, technology-enabled learning spaces offering modern visualizations and simulation capabilities.

Empow Studios will hold a STEM Demo and Open House on Saturday, August 27, 1PM-3PM at its Newton Studios (180 Needham Street, Newton). Empow will show how its talented teaching staff and project-based classes and camps have helped Empow win the most STEM program awards in Massachusetts. Demonstrations will start at 1PM, 2PM, and 3PM. Register here.

MassRobotics will hold its 5th Annual Robot Block Party on October 1,  11AM-4PM  — free and open to the public — at the Seaport Common (85 Northern Avenue, Boston.  More than 40 companies and universities will offer demonstrations, presentations, hands-on interactions with robots, games, and more.

On September 30 is School STEM Field Trip Day, when schools for Grades 7-12 are invited for 1.5 hours of interactive activities and demonstrations from FIRST robotics teams, drones, robotic hands, and more. Teachers may register here for visits to be scheduled 9:30AM-3PM that day.

The Discovery Museum (177 Main Street, Acton) will present the movie Hidden Figures for its third STEM + Movie Night on the Lawn, on August 11 (rain date August 12). Admission to the event is free; the museum will be closed except for access to bathrooms. Activities start at 7:30PM and the movie will start at 8:30PM. Advance reservations are not required.