SpaceX rocket flies on 60th anniversary of first U.S. satellite launch
A SpaceX Falcon 9 launcher boosted a 4.7-ton military-grade communications satellite for SES and the Luxembourg government toward a perch 22,300 miles over the equator following a spectacular late afternoon liftoff Tuesday from Florida’s Space Coast, clearing the last mission off the launch company’s manifest before the long-awaited debut of the massive Falcon Heavy rocket.