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

• India’s first dedicated space astronomy observatory

• Completed 10 years in orbit on September 28, 2025

• Launched by PSLV-C30 from Sriharikota in 2015

• Mission life designed for 5 years, still active after 10

• Equipped with five payloads covering UV to X-ray spectrum

• Key discoveries: black holes, neutron stars, distant galaxies

• First detection of FUV photons from galaxies 9.3 billion light years away

• Collaboration between ISRO and Indian/foreign institutions

• Institutions include IUCAA Pune, TIFR Mumbai, IIAP, RRI Bengaluru

• Also supported by Canada and UK institutions