James Webb Telescope

The James Webb Space Telescope is an orbiting spacecraft designed to observe some of the oldest and most distant objects and events in the Universe, including the first stars and formation of the first galaxies, and to provide characterization of potentially habitable exoplanets.

The NASA led development of the telescope in collaboration with the European Space Agency, and the Canadian Space Agency. It's estimated budget cost is about 10 Billion USD, equivalent to almost 75000 Crore Rupees. It was launched 25 December 2021 on an ESA Ariane 5 rocket from Kourou, French Guiana.

It provides improved infrared resolution, viewing objects up to 100 times fainter than the faintest detectable by Hubble. JWST's primary mirror consists of 18 hexagonal mirror segments made of gold-plated beryllium which gives the Webb telescope a light-collecting area about 25.37 square meters.