According to a page on the Temple Am David website, this planetarium is the "second smallest free standing planetarium in the world! Seating 21 people with a comfortable carpet for the younger set, it is both quaint and modern."
What Grows On in RI is free for everybody, but well-organized information isn't really free. There are expenses. If you like using the Calendar and find the ProvGardener website useful, I hope you'll make a contribution through my Patreon page. And let your friends know about the Calendar!
In July 2018, I have begun developing comprehensive indexing for all the listings. This is a BIG project, and it will take me a while to debug and complete. If you have suggestions for better terms for your organization, please let me know via email. - Sue Korté, Managing Editor