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Space Force Moves to End Polar Missile-Warning Program as Northrop Delivers Sensor

The move sets up a budget fight with Congress.

Overview

  • Northrop Grumman says it has accepted delivery of a missile-warning infrared sensor built for the Next-Gen OPIR Polar satellite.
  • The Space Force’s fiscal 2027 budget proposes terminating the Polar effort and zeroes future funding, citing expected polar coverage from new Low and Medium Earth Orbit constellations.
  • Budget documents put Polar OPIR’s total cost at $3.4 billion, note about $2.1 billion already spent, and assign $436 million in 2026 to close out development work.
  • Congress barred the Pentagon in the 2026 appropriations law from using funds to pause, cancel, or terminate the polar or geosynchronous parts of Next-Gen OPIR, which signals a likely fight over whether the program continues.
  • The push reflects a shift from a few large, bespoke satellites to many smaller spacecraft in lower orbits that commanders say are faster to refresh and harder to disable, a change that could strain jobs and suppliers tied to the Polar program.