Europe’s next two Galileo navigation satellites are prepared for attachment to their Russian-made Fregat upper stage at the Guiana Space Center. Credit: ESA/CNES/Arianespace – Photo Optique Video du CSG – P. Baudon
Two more Galileo navigation satellites are set for liftoff Thursday night from French Guiana on a Soyuz rocket, the first mission in more than three years to add to Europe’s space-based positioning and timing network.