The Girl Scouts of Eastern Massachusetts will hold its STEM Fest at Camp Cedar Hill in Waltham on April 29, 9AM-1PM, for all Girl Scout levels. Register here. For more information, contact Eileen Koury at ekoury@gsema.org.

The smash-hit Black Hole Symphony will be performed at the Museum of Science by a live chamber orchestra under the dome of the Charles Hayden Planetarium, in an entrancing and immersive production. Performances will be 7PM-8PM each night, April 24-27. The show is recommended for ages 18+ but may be suitable for ages 8+ if they are accustomed to musical concerts. Tickets are $20 and do not include museum admission.

Black Hole Symphony is a symphonic journey through spacetime, exploring the unfolding story of supermassive black holes as engines of gravity, light, and creation. This show is a unique collaboration between astrophysicists of the Harvard-Smithsonian Center for Astrophysics and Black Hole Initiative with the musicians of the Multiverse Concert Series. Composer David Ibbett has sonified the light of black hole galaxies as musical notes and chords, in dramatic electro-symphonic score set to immersive 3-D visuals from the Charles Hayden Planetarium. Audiences will be plunged into deep space riding relativistic jets of plasma, guided through the dense dust torus, broad-line clouds, ultimately reaching the blazing accretion disk on the event horizon of a supermassive black hole.

The production is sponsored by MathWorks and the Massachusetts Music Teachers’ Association.

The Discovery Museums (177 Main Street, Acton) invites all to celebrate Earth Day on April 22, 10AM-1PM with friends from the American Chemical Society, local climate education and empowerment group Spring Forward, and the Acton Public Library. There will be a variety of family-friendly, hands-on activities related to local and global ecosystems including investigating algae,  learning about climate change, and building toward collective action.

The UMass College of Engineering will hold its second annual Engineering & Society Summit on Saturday, April 1, 10AM-3PM on the campus of UMass Amherst. It’s an opportunity for students in Grades 10-12 to explore the role of engineers in addressing some of the toughest challenges facing society. The agenda will include conversations with alumni, faculty, and current students on the impact they are making as engineers, as well as mini-workshops at the intersection of engineering and society. Lunch will be provided, and students are welcome to bring a parent or guardian. Space are limited! Register as early as possible to guarantee a spot. Registration ends when space fills or on March 30 at 8AM:

The Sci-Tech Rocketeers — the rocketry club of the New England Sci-Tech (NEST) STEM education center — will hold a rocket launch event in a field in Acton (341 School Street, Acton) on April 2, noon-3PM. The club meets regularly at  NEST in Natick and is open to adults and children ages 13+ (parents of registered children may participate for free). Meetings are for club administration, guest speakers, and the designing and building of rockets in preparation for rocket launch events like this one. For more information, email info@nescitech.org.

Harvard Museums of Science and Culture hosts Science Spotlights, a series of in-person discussions with scientists, for ages 10+, 2PM-3:30PM on the second Saturday of each month through June. They are free for those admitted to the museum. On April 8, there will be two research talks by up-and-coming scientists:

• Sweaty Shrubs, by Melissa Mai of Holbrook Lab
• What Bunnies and Tree Rings Tell Us about Climate Change, by Dr. Jakob, Sedig of Reich Lab

Science Club for Girls will host their annual Catalyst Awards event in-person this year, on April 25, 5:30-8PM, at The Broad Institute (415 Main Street, Cambridge). Honorees this year will be Dr. Latanya Sweeney and Dr. Emily Reichert. Sumbul Siddiqui, Mayor of Cambridge, will speak in person, and Senator Elizabeth Warren will speak by video. Get tickets here.

MIT SPARK will be held next weekend, March 18-19, for students in Grades 7-8 to learn from MIT undergraduate and graduate students in over 70 two-day courses . The lottery phase of registration is over, but registration remains open on a first-come/first-served basis until 11:59PM on March 12. Students  must register on their own. More info here.