Live coverage: Ariane 5 blasts off with two Intelsat satellites

Maintaining a brisk flight rate three days after its last launch, SpaceX sent a Falcon 9 booster powered by a reused first stage into orbit Wednesday evening from Florida with an Airbus-built communications satellite for SES and EchoStar.

A Vega rocket launched from French Guiana at 0149:24 GMT Tuesday (8:49:24 p.m. EST Monday) with Europe’s fifth Sentinel environmental satellite. The Sentinel 2B observatory will take the pulse of Earth’s vegetation, monitoring crops, forests, urban sprawl, and pollution from polar orbit.

A mysterious small satellite built by the German company OHB, purported to be a pathfinder for a Chinese-owned communications constellation, took off from New Zealand Wednesday and soared into orbit on top of a Rocket Lab Electron launcher.