A gallery of images, provided by Penn State student photographers, from the 46-hours of THON 2017 at Penn State's Bryce Jordan Center. THON is a year-round fundraising and awareness campaign for the fight against childhood cancer with proceeds going directly to Four Diamonds and the Penn State Children's Hospital in Hershey.

Jena Dalykas, left, a Penn State senior majoring in marketing, and Dina Tennekoon, a senior majoring in telecommunications, read a letter from a THON child together early on day-three of THON 2017. Every dancer is provided an on-site mailbox and receives letters and cards of encouragement from family, friends, and Four Diamond children and their families throughout the weekend.

THON dancer John McDowell, a member of the 'Science LionPride ' THON dance group, kept busy by hitting a beach ball around the Bryce Jordan Center floor with fellow 'Science LionPride' team dancers during the final morning of THON 2017. Dancers are encouraged to stay active and moving throughout the three-day, 46-hour event.

Mary Albus, Dancer Relations Captain, leads the rest of the Dancer Relation Captains for THON 2017, in the events official line dance at the Bryce Jordan Center on the afternoon of Feb. 18. A unique line dance is created specifically for each THON and occurs every hour, on the hour, to pump dancers up by stretching and performing aerobic, dance moves.

Nittany Lion running back Saquon Barkley high fives Leila Testa, 5, of Lancaster Pa., during the THON Explorers program held at the Lasch Building during THON 2017 on Saturday, Feb. 18. Leila’s brother Daniel, 8, is Delta Upsilon and Phi Sigma Sigma’s four diamonds child.

Layla Taremi, a THON dancer representing Rêve Dance Company, passed some time with a bubble maker at THON 2017 on Saturday, Feb. 18. THON dancers must remain standing throughout the 46-hour event. Proceeds from THON go to the families of pediatric cancer patients at the Penn State Children's Hospital in Hershey, Pa.

Sher Bhangra, a Penn State Bhangra dance team, performed on Saturday Feb. 18 at the 2017 Penn State Dance Marathon. The Penn State Dance Marathon (THON) is a student-run philanthropy that provides financial and emotional support to children with cancer and their families through Four Diamonds at Penn State's Hershey Medical Center.

Dancer Jim Tersak gave a lift to THON child Will Keim during the first evening of THON 2017 at Penn State's Bryce Jordan Center Feb. 17. The Penn State IFC/Panhellenic Dance Marathon (THON) raises money and provides emotional support to children and families battling pediatric cancer.