India’s first space observatory, AstroSat, has completed 10 years in orbit on September 28, 2025. It was launched on September 28, 2015, by PSLV-C30 from Sriharikota with a mission life of five years. Despite that, it continues to deliver valuable scientific data and discoveries.
BulletsIn
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India’s first dedicated space astronomy observatory
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Completed 10 years in orbit on September 28, 2025
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Launched by PSLV-C30 from Sriharikota in 2015
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Mission life designed for 5 years, still active after 10
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Equipped with five payloads covering UV to X-ray spectrum
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Key discoveries: black holes, neutron stars, distant galaxies
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First detection of FUV photons from galaxies 9.3 billion light years away
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Collaboration between ISRO and Indian/foreign institutions
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Institutions include IUCAA Pune, TIFR Mumbai, IIAP, RRI Bengaluru
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Also supported by Canada and UK institutions




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