Live coverage of Orbital ATK’s eighth operational Cygnus resupply flight to the International Space Station. Text updates will appear automatically below. Follow us on Twitter.
Mission Reports
SLS mobile launcher moves to pad 39B for final exams
A towering mobile platform for the agency’s Space Launch System arrived at launch pad 39B Friday at the Kennedy Space Center in Florida for a sequence of water and propellant flow tests, swing arm checkouts and other rehearsals that should conclude with managers declaring the spaceport’s ground systems ready to support the first SLS launch campaign by the end of the year.
