Q&A with Michel Denis, ExoMars flight director

Teams working in Northrop Grumman’s spacecraft factory in Southern California have connected the spacecraft and science modules of the James Webb Space Telescope for the first time, a major milestone as engineers prepare to verify a fix to tears in the observatory’s sunshield, and begin launch vibration and acoustic testing in the coming months.

One job deemed essential by the European Space Agency coronavirus pandemic involves shepherding the BepiColombo spacecraft through a high-speed flyby of planet Earth next month, an immovable event on the $1.8 billion mission’s seven-year journey to Mercury.

Arianespace will fit in a bonus launch of a Soyuz rocket from French Guiana in May to deliver two more European Galileo navigation satellites to orbit, giving the French launch services firm 12 missions on its 2016 manifest, officials said Thursday.