James Web Telescope

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Overview:

Recently, the James Webb Space Telescope (JWST) has discovered six extraordinarily massive first-generation galaxies, formed roughly 500-700 million years after the Big Bang.

About James Web Telescope:

  • This telescope was built in collaboration between NASA, the European Space Agency (ESA) and the Canadian Space Agency and was launched in December 2021.
  • It is presently at a point in space known as the Sun-Earth L2 Lagrange point, approximately 1.5 million km beyond Earth’s orbit.
  • Lagrange Point 2 is one of the five points in the orbital plane of the Earth-Sun system.
  • It's the largest, most powerful infrared space telescope ever built.
  • Objectives: It will examine every phase of cosmic history; from the Big Bang to the formation of galaxies, stars, and planets to the evolution of our Solar System.

 


Q1) What is the Big Bang?

It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now and it is still stretching.

Source:  James Webb telescope spots 6 monster galaxies harbouring tens to hundreds of billions of sun-sized stars’ mass: Study