A simulation of five Lagrangian points in the Sun-Earth system. At these points, the gravitational forces of the two large bodies balance out, allowing a spacecraft to maintain its position with minimal fuel. The L1 point provides continuous observation of the Sun, and starting in 2025, three heliophysics missions will operate there: NASA's IMAP, the Caruthers Geo-Corona Observatory, and NOAA's SWFO-L1 satellite. Credit: NASA's Conceptual Image Lab / Krystofer Kim

A simulation of five Lagrangian points in the Sun-Earth system. At these points, the gravitational forces of the two large bodies balance out, allowing a spacecraft to maintain its position with minimal fuel. The L1 point provides continuous observation of the Sun, and starting in 2025, three heliophysics missions will operate there: NASA's IMAP, the Caruthers Geo-Corona Observatory, and NOAA's SWFO-L1 satellite. Credit: NASA's Conceptual Image Lab / Krystofer Kim

A simulation of five Lagrangian points in the Sun-Earth system. At these points, the gravitational forces of the two large bodies balance out, allowing a spacecraft to maintain its position with minimal fuel. The L1 point provides continuous observation of the Sun, and starting in 2025, three heliophysics missions will operate there: NASA's IMAP, the Caruthers Geo-Corona Observatory, and NOAA's SWFO-L1 satellite. Credit: NASA's Conceptual Image Lab / Krystofer Kim