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The James Webb Space Telescope


The Silver Shroud
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Nasa is preparing to launch a space telescope that will see further into the Universe than anything else ever built.

The James Webb Space Telescope (JWST) has taken 30 years and $10bn (£7.5bn) to develop, and is being described as one of the grand scientific endeavours of the 21st Century.

The telescope will be able to see just about anything in the sky. However, it has one overriding objective - to see the light coming from the very first stars to shine in the Universe.

These pioneer stars are thought to have switched on about 100-200 million years after the Big Bang, or a little over 13.5 billion years ago.

Webb will be picking out groupings of these stars. They are so far away, their light - even though it moves at 300,000km (186,000 miles) per second - will have taken billions of years to travel the cosmos.

What is the James Webb Space Telescope and when will it launch? - BBC News

Edited by The Silver Shroud
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