Operating from the sun-Earth Lagrange Point 1 (L1), a gravitationally stable position between Earth and the sun, L1 Series will continuously monitor the sun for space weather events such as coronal mass ejections, solar flares, and solar wind. The mission will provide NOAA’s Space Weather Prediction Center (SWPC) with real-time data to help safeguard satellites, power grids, and other critical infrastructure from potentially damaging space weather effects.

“With an increasing number of satellites entering orbit each year and our reliance on these technologies growing, spacecraft like Space Weather Next L1 Series are crucial to protecting our most vulnerable infrastructure, both in space and here on Earth,” said Dr. Alberto Conti, vice president and general manager of Civil Space for BAE Systems Space & Mission Systems.

Space weather, caused by solar activity, poses risks to satellites, GPS systems, communication networks, and even astronauts. L1 Series will carry at least five instruments to provide near-real-time space weather forecasts, enabling authorities to prepare for power disruptions and spacecraft maneuvers to avoid potential damage.

BAE Systems will not only build the spacecraft bus but will also oversee integration, environmental testing, and launch support. The company has an extensive track record in heliophysics missions, having also built the Carruthers Geocorona Observatory for NASA, which will observe Earth’s exosphere and its response to solar activity.

Scheduled for launch in 2029, the L1 Series mission will be a key asset in advancing space weather monitoring and protection efforts.