What is the James Webb Space Telescope (JWST)?
Q: What is the James Webb Space Telescope (JWST)?
A: JWST is a telescope that was launched on 25 December 2021, and it is a replacement for the Hubble Space Telescope.
Q: Who is James E. Webb?
A: James E. Webb is a director at NASA who created the Apollo program that put astronauts on the moon, and he is the one that the telescope is named after.
Q: How wide is the main mirror of JWST?
A: The main mirror of JWST is 6.5 metres (21 feet) wide, which is 6 times larger in area than the Hubble Space Telescope.
Q: How is the main mirror of JWST made?
A: The main mirror of JWST is made in 18 pieces that fold together during the launch, so that it can fit into a rocket.
Q: What kind of telescope is JWST?
A: JWST is mainly an infrared telescope but also works in the red part of the visible light.
Q: Why is JWST plated with gold?
A: JWST is plated with gold because gold reflects infrared very well.
Q: How does JWST keep itself cool?
A: JWST is protected by a large sunshield the size of a tennis court to keep it cool and dark, and it must be kept as cool as possible because infrared vision can be used to see heat radiation.
