"This is a historic milestone for space exploration and an important achievement for the commercial space industry," Rubio said in a statement. "We no longer live in a world where space is only explored by government agencies, and we should all take pride that an American company is the first to accomplish this mission."
Congress: SpaceX made history on Friday
Those sending congratulations to NASA and SpaceX included House Minority Whip Steny Hoyer (D-Md.) and Sens. Charles Schumer (D-N.Y.), Mark Warner (D-Va.) Barbara Mikulski (D-Md.), Ron Johnson (R-Wis.), Thad Cochran (R-Miss) and Marco Rubio (R-Fla.).