Overview
On 3 May 2026, the Indian start‑up GalaxEye placed its first satellite, Drishti, aboard a SpaceX Falcon 9 from Vandenberg Space Force Base, USA. The payload was part of the 45‑satellite CAS500‑2 mission.
Key Developments
- Traditional remote‑sensing platforms use either SAR or multi‑spectral optical sensors, each with distinct limitations.
- Opto‑SAR enables simultaneous capture of the same ground area, removing temporal gaps and parallax issues.
- The satellite’s onboard AI performs sub‑pixel co‑registration and jitter correction, delivering a unified, analysis‑ready dataset.
- Drishti addresses the Indian context where monsoon clouds often hamper optical imaging, a challenge less pronounced for western satellite operators.
Important Facts
- Both sensors are mounted on the same bus and operate in sync, producing co‑registered images in real time.
- The mission is part of India’s broader push to commercialise space, alongside private ventures such as Skyroot Aerospace and Pixxel.
- The regulatory framework is overseen by IN‑SPACe, created under the Indian Space Policy 2023.
- The upcoming Space Activities Bill (drafted 2025) underpins these commercial efforts.
Exam Relevance
Understanding the Drishti mission helps aspirants link technology‑driven policy (GS3) with India’s strategic push for self‑reliance in space (GS4). The integration of AI and dual‑sensor imaging illustrates how private innovation complements ISRO’s legacy, a recurring theme in questions on the Indian space ecosystem.
Way Forward
Future steps include scaling the Opto‑SAR concept to larger constellations, fostering public‑private partnerships for data services, and aligning regulatory reforms (via IN‑SPACe) with international standards. Monitoring the implementation of the Space Activities Bill will be crucial for assessing the growth trajectory of India’s private space sector.