How far will the James Webb Space Telescope see?
, to answer questions of how galaxies assemble and to peer through clouds of dust to watch stars being formed. But it will also look much closer to home, studying objects within our solar system such as Mars, the gas giants, Pluto, and even some asteroids and comets.
JWST is designed differently to Hubble, with a set of 18 hexagonal shaped mirrors arranged in a honeycomb shape 6.5 metres across, compared to Hubble’s spherical 2.4 metre diameter primary mirror. This means JWST has a 6.25 times larger surface area to collect light compared to the Hubble Space Telescope. The JWST has upgraded cameras and is protected by a sun shield 22 by 12 metres wide.The JWST is designed to peer even further back to the edge of the observable universe, looking back in time.
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