Interesting info on the L2 (Lagrange Point) station where the telescope is headed. L2 is 1M miles from Earth and will take the telescope some 30 days to reach.
Because the telescope operates on infrared signals, it requires extensive shielding from light sources. Operational temperature is -370 F.
https://webb.nasa.gov/content/about/orbit.html
The Webb Telescope will actually orbit a specific completely empty point in space.
That point is apparently somewhat mobile, so Webb's orbit must be continually adjusted during its productive life time.