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 Indian Navy inducts 4 types of indigenously developed sonars

  • The Indian Navy has formally inducted four types of indigenously developed sonars that will boost its underwater surveillance capability.
  • The systems have been designed and developed by NPOL Naval Physical & Oceanographic Laboratory (NPOL), a Kochi based laboratory of DRDO.

    Denver becomes 1st US city to legalise social marijuana use

  • The people of Denver, US have passed a ballot initiative, allowing private businesses like clubs, bars and restaurants to apply for permits allowing marijuana consumption within their premises.
  • Denver had already legalised recreational marijuana use, but public consumption was illegal until now.
  • This comes after the US states California, Massachusetts, and Nevada legalised recreational marijuana use.
  • NASA astronaut set to become the oldest woman in space

  • NASA astronaut Peggy Whitson, at an age of 56 years, will become the oldest woman in space history after she takes off for the International Space Station (ISS) on Thursday.
  • Notably, Whitson, who holds the record for most time spent in space by a woman, is also the first woman to become ISS commander.

This will be Whitson’s third spaceflight.

Scientists produce faster-growing crops by improving photosynthesis

  • Scientists have improved the photosynthesis process in the plants to produce faster-growing crops. The breakthrough was published in the journal Science.
  • They had used genetic modification technology to improve photosynthesis in the plants.
  • This modification increased amount of sunlight energy crop plants can channel into food production.