Lawmakers tweet end of the space era

Sen. John Cornyn (R-Texas) tweeted: "Bittersweet moment: Last Space Shuttle Lands in Florida, Ending 30-Year NASA Program [5:57 a.m. ET]"

Cornyn also noted, "Texans should take pride in three decades' worth of accomplishments in the space program."

Sen. Bill Nelson (D-Fla.), a former astronaut, tweeted: "Welcome home #Atlantis. Though we’ll not again explore on a shuttle’s wings, we won’t stop reaching as long as there are stars." Nelson watched the final landing early this morning on TV at home in Virginia, according to his office.

Rep. Tim Scott (R-S.C.) tweeted: "Glad space shuttle Atlantis has landed safely at Kennedy Space Ctr. 30 yrs of service to our nation and the planet."

Rep. Pete Visclosky (D-Ind.) tweeted: "This morning marked the landing of the space shuttle Atlantis and the end to our nation’s last space shuttle mission.http://t.co/"

Rep. Jerry Costello (D-Ill.) tweeted: "Welcome home Atlantis! A perfect landing is a fitting end to the historic shuttle program."

Other members of Congress, including Sen. Barbara Mikulski (D-Md.) and Reps. Lynn Westmoreland (R-Ga.) and Erik Paulsen (R-Minn.) also noted the "end of an era" in their tweets.

Sen. Mark Udall (D-Colo.) was more optimistic about his state's role in America's future in space:

Udall tweeted: "Final #NASA shuttle mission landed this morning, but #CO is well positioned to lead future space exploration. http://t.co/R"