How To Get FREE entry to Longway Planetarium and Sloan Museum of Discovery Labor Day Weekend Shared by Mrs. Weber Leave a Comment Click here to learn How To Get FREE entry to Longway Planetarium and Sloan Museum of Discovery Labor Day Weekend and November 2-4, 2022! Share: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email More Click to share on Reddit (Opens in new window) Reddit Click to share on LinkedIn (Opens in new window) LinkedIn Click to print (Opens in new window) Print