The James Webb Space Telescope is expensive, but it should be worth it

James Webb Space Telescope Mirrors Undergoing Cryogenic Testing The flight mirrors for the James Webb Space Telescope undergo cryogenic testing at NASA Marshall. Credit: Ball Aerospace

Ball Aerospace

THEY say good things come to those who wait. And when it comes to the James Webb Space Telescope (JWST), we have been waiting long enough. Originally due to launch in 2007, it has been plagued by delays due to engineering problems, the need to find money to meet its soaring costs and, more recently, the covid-19 pandemic. It has now racked up a bill around 20 times its initial budget.

Finally set to blast off in a few weeks, this extraordinary machine promises to show us the moment the first stars lit up and solve all manner of …

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