Satisfy your science curiosity during our SCFD Free Days and Free Nights. No tickets are needed for general Museum admission on these days. Walk up anytime during Free Days or Free Nights and gain access to the Wildlife Halls or our permanent exhibitions. A separate ticket is required if you'd like to visit the planetarium or temporary exhibitions.

The Scientific & Cultural Facilities District is a voter-approved special district in the seven-county metro area that provides a stable source of supplemental funding to more than 300 scientific and cultural organizations inside the district's boundaries. The SCFD collects a one-tenth of 1 percent sales-and-use tax (or one penny on every $10 spent), providing approximately $40 million each year to area cultural attractions both small and large.

• Sunday, January 11
• Sunday, February 1
• Monday, February 9
• Friday evening, March 6 (Girls & Science, 4-9 p.m.)
• Monday, April 13
• Sunday, April 26 (Día del Niño, in collaboration with the Mexican Cultural Center)  
• Friday, June 19 (Juneteenth)
• Monday, August 24
• Tuesday evening, September 1 (4-9 p.m.)
• Sunday, October 11 (OUT! at the Museum)
• Saturday evening, November 7 (Night at the Museums for Denver Arts Week, 5-10 p.m.)
• Monday, November 16