James Webb Telescope, scheduled to launch in 2021, is set to explore the beginnings of the universe and unravel some of the most profound mysteries of time. It aims to observe the first stars and galaxies that formed after the Big Bang, unveiling a clearer picture of the universe's origins.

The James Webb Space Telescope, considered the successor to the Hubble Telescope, will provide unprecedented views of the universe due to its advanced technology and capabilities. Equipped with a 6.5-meter mirror, it is designed to detect faint light from extremely distant objects.

With its highly sensitive instruments, the Webb telescope will peer back in time to the "cosmic dawn," a period roughly 200 to 300 million years after the Big Bang when the first stars and galaxies began to form.

Observing this crucial phase in the universe's evolution will offer valuable insights into how these celestial structures emerged and evolved.

One of the main objectives of the Webb telescope is to study the formation and evolution of galaxies. By observing the farthest and earliest galaxies, it will help scientists understand the processes that led to the development of these cosmic bodies and how they have changed over time.

The telescope's infrared capabilities are crucial for detecting these distant objects, as the light from them has been stretched and shifted towards the red end of the spectrum due to the expansion of the universe.

By observing in the infrared spectrum, the James Webb Telescope will bypass the obstacles posed by cosmic dust and gases, allowing astronomers to see through dense regions and observe celestial objects that were previously hidden.

Additionally, the Webb telescope will investigate the composition of exoplanets, planets beyond our solar system. It will study their atmospheres, searching for signs of habitability and the presence of key molecules such as oxygen, carbon dioxide, and water vapor. This will bring us closer to answering the age-old question of whether we are alone in the universe.

In summary, the James Webb Telescope will revolutionize our understanding of the beginning of time by observing the first stars and galaxies that emerged after the Big Bang. By studying the formation and evolution of galaxies, investigating exoplanets, and utilizing its infrared capabilities, this powerful telescope will unlock the mysteries of the universe's origins and potentially provide insights into the existence of extraterrestrial life.