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PRATUSH Telescope

  • 05 Apr 2024

Recently, astronomers are looking forward to posting high-resolution telescopes on the moon and in orbit around it, including one from India called PRATUSH.

  • Probing ReionizATion of the Universe using Signal from Hydrogen (PRATUSH) is a radio telescope to be sited on the moon’s far side.
  • It is being built by the Raman Research Institute (RRI) in Bengaluru with active collaboration from the Indian Space Research Organisation (ISRO).
  • Initially, ISRO will place PRATUSH into orbit around the earth. After some fine-tuning, the space agency will launch it moonwards.
  • It will be to detect signals from the first stars and galaxies, reveal the cosmic dawn of the universe, answering the question when the first stars formed, the nature of the first stars and what was the light from the first stars.
  • It will carry a wideband frequency-independent antenna, a self-calibrating analog receiver and a digital correlator to catch radio noise in the all-important signal from the Dark Ages.
  • The target instrument sensitivity is at the level of a few millikelvin without being limited by any systematic features.