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ISRO Tests Quantum Key Distribution Between Satellites.

Science & Technology | Dated: 07 Apr 2026

Making a historic breakthrough, the Indian Space Research Organisation (ISRO) successfully established entirely secure Quantum Key Distribution (QKD) communication between two moving satellites in low earth orbit. This prevents space communications from being intercepted.

🎯 Key Highlights:

  • The test heavily relied on entangled photon technology.
  • It guarantees absolutely unbreakable encryption for strategic defense data.
  • The project was executed with the Raman Research Institute.

💡 Other Important Facts:

  • Technology: Quantum Key Distribution.
  • Agency: ISRO.
  • Application: Secure Comms.

📚 Test Your Knowledge:

Which advanced communication technology did ISRO recently test successfully between two satellites to ensure unbreakable encryption?

Correct Answer: Quantum Key Distribution (QKD)

🚀 Quick Recap:

About QKD

  • Core Principle - Quantum Mechanics (Entanglement)
  • Benefit - Instantly detects eavesdropping