[4] Opened in 1971, the Stephen I. Tupper planetarium hosts a variety of shows[5] and serves as an integral part of the elementary science curriculum,[6] receiving its funding through the school budget and currently operated through Western Suffolk BOCES.

[7] It boasts a 12.2 m dome, seating for 120,[8][9] and a projector nicknamed Sidney, which is a model A4 Spitz Star Projector manufactured in Chadds Ford, PA.[10] Its directors have included David Cohn,[11] who has worked on coordinated efforts with NASA/JPL, Thomas Madigan, who has worked as an IT professional for the likes of Robert Half International,[12] and Dave Bush, who has directed 3 planetariums on Long Island including the Vanderbilt Museum's Reichert Planetarium in Centerport, NY.

[13] The October 29, 2007 issue of Sports Illustrated ran a story about Centereach's football team being a favored pick for its opponent's homecoming games because of its poor record in recent seasons.

[16] In January 1997, 30-year-old New York City firefighter James Halversen was shot and killed while jogging around the Centereach High School track, in a random act of violence.

[19][20] This unfortunate event gave rise to stories about a portion of the track being "haunted," so much so that it has drawn paranormal investigators to the site.