Europe’s heavy-lift rocket Ariane 6 has launched 36 satellites for Amazon’s low-Earth orbit constellation, using four upgraded solid-propellant boosters that the European Space Agency (ESA) says increase performance and set a new European record for the most cargo carried to space in a single launch. Europe’s heavy-lift rocket Ariane 6 has launched 36 satellites for Amazon’s low-Earth orbit constellation, using four upgraded solid-propellant boosters that the European Space Agency (ESA) says increase performance and set a new European record for ... [2403 chars]