Rocket Lab Corporation (NASDAQ:RKLB) shares are trading lower on Thursday. The company disclosed that it completed its first launch of 2026 and its 80th Electron mission overall.DetailsThe mission, titled The Cosmos Will See You Now, lifted off from Rocket Lab Launch Complex 1 in Mahia, New Zealand, at 11:52 pm NZDT (10:52 UTC).It deployed two satellites into a 1,050 km circular orbit for the first time, dedicated to a customer, Open Cosmos.Open Cosmos, a pan-European space tech firm, delivers complete sate ...