---
title: "AstroSat: India's Space Telescope | Model Diplomat"
description: "AstroSat is India's first multi-wavelength space observatory, launched by ISRO in 2015. Covers UV to hard X-rays in one platform—key for UPSC GS3 science."
url: "https://modeldiplomat.com/learn/glossary/astrosat"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- AstroSat is India's first dedicated multi-wavelength space telescope, launched by ISRO in 2015 to observe celestial sources across ultraviolet, optical, and X-ray bands simultaneously.
- How does AstroSat differ from ISRO's Chandrayaan and Mangalyaan missions?
- What are the five scientific payloads aboard AstroSat?
- Can international researchers use AstroSat data?
- Why is AstroSat relevant for UPSC and policy analysis?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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In 2020, researchers at IUCAA Pune used AstroSat's Ultraviolet Imaging Telescope to detect extreme-ultraviolet light from the galaxy AUDFs01, located about 9.3 billion light-years from Earth.

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