249-James Webb Space Telescope: An Overview
June 19
The James Webb Space Telescope will be the largest telescope ever sent into space. It is the result of efforts from NASA, the European Space Agency and the Canadian Space Agency and will peer to the edges of the visible universe. This video highlights some of the Webb’s most impressive facts.
James Webb Space Telescope: Key facts:
Launch date: Dec. 25, 2021.
Cost (at time of launch): $10 billion.
Orbit: JWST will orbit the sun, around the second Lagrange point (L2), nearly 1 million miles (1.5 million kilometers) from Earth.
Primary mirror size: 21.3 feet (6.5 meters) across.
Sunshield: 69.5 ft by 46.5 ft (22 meters x 12 meters).
Mass: 14,300 lbs (6,500 kg).