The Solemnity of the Immaculate Conception of the Blessed Virgin Mary, a Holy Day of Obligation for Catholics, will be celebrated tomorrow, Thursday, Dec. 8.

Masses will be celebrated 7 a.m., and 12:10 and 5 p.m. in the Chapel of St. Thomas Aquinas on the St. Paul campus, and at noon in the Chapel of St. Thomas More in the School of Law on the Minneapolis campus.