Live coverage of the countdown and launch of an Atlas 5 rocket with the SBIRS GEO 5 missile warning satellite for the U.S. Space Force. Text updates will appear automatically below. Follow us on Twitter.
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United Launch Alliance’s live launch broadcast begins at 1:11 p.m. EDT (1711 GMT) Tuesday, May 18.
Teams at Stennis Space Center in Mississippi removed the core of NASA’s first Space Launch System heavy-lift rocket from a test stand earlier this week for loading onto a barge to carry it to Kennedy Space Center in Florida, where the rocket stage is due to arrive by the end of the month to start final preparations for a test flight around the Moon.
Wrapping up a busy week on the International Space Station, a crew of three boarded their Soyuz landing craft and headed for Earth on Friday. Cosmonaut Gennady Padalka, the most experienced space crewman in history, was at the controls, along with Danish and Kazakh crew members, and landed in Kazakhstan at 8:51 p.m. EDT Friday (0051 GMT Saturday).
A $1.8 billion U.S. Air Force communications satellite rode a United Launch Alliance Atlas 5 rocket into orbit Wednesday from Cape Canaveral, joining three similar craft perched more than 22,000 miles above Earth to ensure government leaders can remain in contact with military commanders in the worst-case scenario of nuclear war.
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