The blastoff of four broadband Internet satellites aboard a Soyuz rocket from French Guiana has been pushed back to Friday, the launch company Arianespace announced Monday.

SpaceX successfully launched a Falcon 9 rocket Sunday at 7:21 p.m. PDT (10:21 p.m. EDT; 0221 GMT Monday) with SAOCOM 1A, a radar observation satellite for Argentina, then returned the booster to a landing at Vandenberg Air Force Base, California, for the first time.

A solid-fueled Minotaur 4 rocket lifted off from Wallops Island, Virginia at 9:46 a.m. EDT (1346 GMT) Wednesday. The four-stage rocket, comprised of retired Peacekeeper missile parts, launched on a mission to deliver four classified payloads into orbit for the National Reconnaissance Office.