GalaxEye adds to India’s remote sensing capability, launches world’s 1st OptoSAR Satellite

Bengaluru-based startup GalaxEye successfully launched Mission Drishti on May 3, 2026, aboard a SpaceX Falcon 9 rocket. Drishti is India's largest privately ...

What Happened

Bengaluru-based startup GalaxEye successfully launched Mission Drishti on May 3, 2026, aboard a SpaceX Falcon 9 rocket.
Drishti is India's largest privately developed Earth observation satellite, weighing 190 kg, and is designated the world's first OptoSAR (Optical + Synthetic Aperture Radar) satellite.
The satellite's OptoSAR payload co-locates a high-resolution SAR sensor and a 7-band multispectral imager on a single platform — enabling simultaneous imaging in optical and radar bands.
The mission has strategic applications in national security surveillance, agricultural monitoring, and disaster management by providing continuous, cloud-penetrating imagery.
GalaxEye plans to scale Mission Drishti into a constellation of 10 satellites by 2030, creating a sovereign, high-frequency Earth observation network.

Static Topic Bridges

Synthetic Aperture Radar (SAR) and Remote Sensing

Synthetic Aperture Radar (SAR) is an active microwave remote sensing technology that transmits its own radar pulses and captures the energy that bounces back from Earth's surface. Unlike optical sensors that depend on sunlight and are blocked by clouds, SAR operates 24/7 in all weather conditions, penetrating cloud cover, smoke, and even vegetation canopy. This makes SAR uniquely valuable for a tropical country like India, where monsoon cloud cover can render optical satellites blind for 4–5 months per year.

SAR resolution is improved by using the satellite's motion to synthesise a much larger antenna aperture — hence "Synthetic Aperture."
SAR can detect millimetre-scale surface displacement, making it useful for earthquake monitoring, landslide prediction, and glacier tracking.
RISAT (Radar Imaging Satellite) is ISRO's existing series of SAR-based Earth observation satellites used for all-weather surveillance.
NISAR (NASA-ISRO SAR), launched on GSLV-F16 in July 2025, is the first dual-frequency SAR satellite (L-band by NASA + S-band by ISRO), scanning almost all of Earth's land and ice surfaces every 12 days.

Connection to this news: Mission Drishti advances SAR-optical fusion by placing both sensors on a single satellite for the first time commercially, overcoming the limitation that optical and SAR data are typically collected separately and must be merged in post-processing.

Indian Space Policy 2023 and Private Sector Space Commercialisation

The Indian Space Policy 2023, approved on April 6, 2023, marks a structural shift in India's space governance by formally opening the entire space value chain to non-governmental entities (NGEs). It mandates ISRO to transition out of operational satellite manufacturing and focus on R&D, while commercial activities are routed through NSIL (New Space India Limited) for government-originated technologies and IN-SPACe (Indian National Space Promotion and Authorisation Centre) as the regulatory and facilitation body for private players.

IN-SPACe was set up in 2020 under the Department of Space to evaluate, promote, and authorize private sector space activities.
The policy allows NGEs to undertake end-to-end activities including satellite manufacturing, launch services, remote sensing data dissemination, and communication services.
India currently allows 100% FDI in the space sector under the automatic route for satellite manufacturing and operation.
India's private space ecosystem produced NSIL-commercialised launches for 49 satellites between 2023 and 2025.

Connection to this news: GalaxEye's Mission Drishti is a direct product of the post-2023 policy environment — a startup building India's largest privately developed satellite and launching it commercially, exemplifying the IN-SPACe-facilitated model.

Earth Observation for Internal Security and Disaster Management

Earth observation satellites serve dual-use purposes — they are critical tools for both civilian governance (agriculture, disaster response, urban planning) and national security (border surveillance, maritime domain awareness, military reconnaissance). All-weather, round-the-clock imagery is particularly strategic for monitoring active conflict zones, tracking cross-border movement, and assessing post-disaster damage in real time.

India operates the Cartosat series (optical) and RISAT series (radar) for civil and defence applications under ISRO.
The National Remote Sensing Centre (NRSC), Hyderabad, is the nodal agency for satellite-based disaster support under ISRO.
Maritime surveillance using satellites is critical under India's Sagarmala programme and for monitoring Exclusive Economic Zone (EEZ) violations.
Dual-use satellite data is regulated under the Remote Sensing Data Policy (RSDP), last revised in 2011.

Connection to this news: Mission Drishti's OptoSAR capability — seeing through clouds and darkness simultaneously — directly upgrades India's sovereign surveillance capacity, reducing dependence on foreign satellite data during crises and operations in cloud-prone border regions.

Key Facts & Data

Satellite weight: 190 kg — India's largest privately built spacecraft to date.
Launch vehicle: SpaceX Falcon 9 (commercial launch).
OptoSAR payload: combines SAR sensor + 7-band multispectral imager on one platform.
Planned constellation: 10 satellites by 2030.
NISAR comparison: NISAR (NASA-ISRO, 2025) is SAR-only; Drishti is the first to fuse optical + SAR commercially.
India Space Policy 2023 enables 100% FDI in satellite manufacturing and operation.
IN-SPACe: nodal body for private space sector authorization, set up 2020.
RISAT-1 (2012) was India's first SAR-based Earth observation satellite for all-weather surveillance.