Q&A with Mike Laidley, vice president of Orbital ATK’s Next Generation Launch program (members only)

A U.S.-built commercial communications craft owned by Intelsat and a new node for Europe’s laser data relay satellite network rocketed into orbit Tuesday from Kourou, French Guiana, on top of an Ariane 5 rocket.

Flying with an exceptionally lightweight payload, a Falcon 9 rocket delivered a multipurpose research satellite into a nearly 450-mile-high orbit Thursday for Taiwan following a smooth countdown and liftoff from California’s Central Coast.

Stratolaunch Systems, a company backed by Microsoft co-founder Paul Allen, will launch Pegasus XL rockets produced by Orbital ATK from the world’s largest airplane as officials shift focus toward deploying lighter satellites into orbit.