Active challenges
SpaceActive

Cislunar communication relay constellation

Architect an 8-satellite constellation for continuous Earth-Moon comms with sub-$50M total mass-to-LEO cost.

posted by LunarOpen Initiative · 2026-02-18

Key performance indicators

  • Coverage≥ 99% Earth-Moon line of sight
  • Bandwidth≥ 100 Mbps duplex
  • Launch cost< $50M total mass-to-LEO

Branches under exploration

12 branches55% progress
  • branch-001
    hypothesis: alternative material composition vs. baseline
    30%
  • branch-002
    hypothesis: alternative material composition vs. baseline
    47%
  • branch-003
    hypothesis: alternative material composition vs. baseline
    64%
  • branch-004
    hypothesis: alternative material composition vs. baseline
    81%
  • branch-005
    hypothesis: alternative material composition vs. baseline
    38%
  • branch-006
    hypothesis: alternative material composition vs. baseline
    55%