• As light travels with a velocity of about 3,00,000 km per second, light from a distant object will take time to reach us on Earth. Hence, when we see a distant stellar object, we see it as if it were far back in time. To collect more light we need giant infrared telescopes. JWST is the biggest infrared telescope ever built.
  • The first five images released are — the deep field image of the SMACS 0723 cluster of galaxies which date back to times when the first stars were born, the Carina Nebula vividly showing the birth of new stars, the Southern Ring Nebula which details a dying star, the Stephan's quintet where we can see the cataclysmic cosmic collision of galaxies and finally the WASP-96 b, an exoplanet (a planet orbiting a distant star).
  • The spectroscopic observation of JWST reveals that there is a considerable amount of water vapour in the WASP-96 b's atmosphere. However due to the blistering heat, WASP-96 is unlikely to host life.