Q&A with Guglielmo Aglietti, RemoveDebris principal investigator (members only)

In a reshuffling of SpaceX’s launch schedule, a Falcon 9 rocket is set for liftoff no earlier than Dec. 8 on a mission to deliver several tons of supplies and experiments to the International Space Station and return to service a Cape Canaveral launch pad damaged in a catastrophic rocket explosion last year.

After two of the last three Vega rocket launches ended in failure, Arianespace launched another Vega launcher from French Guiana at 9:50 p.m. EDT Wednesday (0150 GMT Thursday) with Airbus’s Pléiades Neo 3 commercial Earth observation satellite and five secondary payloads.

Arianespace chief executive Stephane Israel announced an anomaly occurred during Thursday’s flight of an Ariane 5 rocket from Kourou, French Guiana, shortly after the launcher’s second stage engine ignited.