RKLB ▲ +2.7% - Rocket Lab Corporation $RKLB - Rocket Lab Introduces High-Efficiency Solar Cell to Reduce Reliance on Supply-Constrained Critical Minerals Rocket Lab shares rose 2.7% today following the company's introduction of a high-efficiency solar cell designed to reduce dependence on supply-constrained critical minerals. The development addresses a key constraint in space hardware manufacturing and positions the company to differentiate its offerings in the competitive satellite and launch services market. 08-SEP-2026 04:20 PM ET