Q&A ABOUT THE SCIENCE OF THE JWST
Jan 20, 2022
2 minutes
Ezzy Pearson interviews Mark Clampin
What is the James Webb Space Telescope (JWST)?
It’s a 6.5m-aperture infrared telescope, which means it is looking at heat radiation. We have used gold to coat the mirror, which is extremely reflective in infrared wavelengths, so we collect something like 97-98 per cent of all the light that hits the telescope.
How have you fitted a 6.5m-wide telescope in an Ariane 5 rocket,
You’re reading a preview, subscribe to read more.
Start your free 30 days