An Ariane 5 rocket lifts off from the Guiana Space Center with the SES 17 and Syracuse 4A communications satellites. Credit: ESA/CNES/Arianespace/S. Martin
A European Ariane 5 rocket fired into space Saturday night from French Guiana with a commercial broadband satellite for SES and a French military telecom craft, setting a new payload mass record for geostationary transfer orbit on the final Ariane 5 flight before launch of the James Webb Space Telescope in December.

