The deployment of the shade on the $10 billion telescope began Tuesday with the successful lowering of two arms known as Utilized Pallet Structures.
about 100 times as powerful as the olderspace objects. Webb is also tuned to see in the infrared part of the spectrum, giving it the ability to see objects that were largely hidden to Hubble.
Light travels incredibly fast, but it still takes time to travel from a star or other source to our telescopes. The farther a source is, the longer it takes for its light to reach us. This meanswere — in some cases millions or even billions of years ago. Because of Webb's sensitivity, it will be able to see all the way back to a time when the first galaxies were forming after the Big Bang, which took place about 13.8 billion years ago.
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