The James Webb Space Telescope is the successor to the Hubble Telescope.
It's a 6.5-metre telescope that will have 8 times the collecting surface of the Hubble Telescope.
It will be sent into space at a distance of about 1.5 million kilometres beyond the orbit of the Moon, at what we call the second Lagrange Point.
At this position, background radiation is very, very low, and the telescope will be specially designed for infrared observation.
The telescope itself will be cooled to cryogenic temperatures; that is, at 30 Kelvin (-250 degrees Celsius).
Canada is an important partner in this telescope.
Canada is providing a piece of scientific equipment called the Fine Guidance Sensor.
This instrument has the crucial role of maintaining the extremely precise aim of the James Webb Telescope.