India’s First Dedicated Space Observatory Astrosat Completes Ten Years of Scientific Discoveries

Launched on September 28, 2015, India’s first multi-wavelength space observatory, AstroSat, has completed a decade of operations. Despite an initial design life of five years, it continues to provide valuable data across the electromagnetic spectrum, from ultraviolet to high-energy X-rays. AstroSat features five unique payloads, including the Ultra Violet Imaging Telescope (UVIT) and Soft X-ray Telescope (SXT). It has made significant contributions to astronomy, including the first-time detection of Far-UV photons from a galaxy 9.3 billion light-years away and observations of black holes and neutron stars, involving collaborations with various Indian and international institutions.

Key Points

  • AstroSat is India's first dedicated multi-wavelength space astronomy mission, launched by ISRO using the PSLV-C30 rocket.
  • The observatory has exceeded its planned five-year mission life, doubling its operational span to ten years.
  • It carries five payloads that allow simultaneous observation of celestial sources in different wavelengths.
  • Significant discoveries include the detection of extreme-UV light from a distant galaxy and insights into the behavior of neutron stars.

Exam Facts

  • Launch Date: September 28, 2015, using the PSLV-C30 (XL) rocket.
  • The five payloads are UVIT, LAXPC, CZTI, SXT, and SSM.
  • Collaborating institutions include IUCAA, TIFR, IIA, and the Raman Research Institute (RRI).

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All current affairs of 29 September 2025