• ISRO expects its Aditya-L1 solar probe to enter into orbit around Lagrangian point L1 on January 7, said the chairman of the space agency, S. Somanath.
  • One of the five Lagrange points or ‘equilibrium points’ in the Sun-Earth system, L1 is about 1.5 million kilometres from the Earth between the planet and the Sun.
  • ISRO had launched the Aditya-L1 mission aboard the PSLV-C57 on September 2.