Timeline Thursday 23 April 1992

Events on Thursday 23 April 1992 2

• 1921 – 1992 Satyajit Ray (1921-1992) Died 23 April 1992, aged 70 Satyajit Ray was an Indian filmmaker whose "Apu Trilogy" brought Bengali cinema to international acclaim. He received an honorary Academy Award for lifetime achievement weeks before his death. His work influenced directors worldwide and remains central to the canon of world cinema.
• 1992 COBE satellite maps cosmic microwave background First detection of primordial temperature ripples NASA's Cosmic Background Explorer satellite detected tiny temperature variations in the cosmic microwave background radiation left over from the Big Bang. The ripples matched predictions for the seeds of galaxy formation and were called by lead scientist George Smoot "the discovery of the century." The results strongly supported the Big Bang model of the universe.