James Webb Space Telescope vs Hubble Images

On July 11, 2022, the world was amazed when the latest technological innovation in telescopes released its first major image. This latest innovation is the James Webb Space Telescope and the image it released represents the deepest infrared view of our universe ever by mankind. The area in the view is called SMAC 0723 and it is home to a huge galaxy cluster.
The image is called Webb's First Deep Field, which gives us hints that there is much more to come. Webb's image covers a patch of sky approximately the size of a grain of sand held at arm's length by someone on the ground and reveals thousands of galaxies in a tiny sliver of vast universe. The clarity is beyond belief! It's like a time machine, showing exactly as it looked 4.6 billion years ago.

Now in order to understand the power of the latest technology in the James Webb Telescope, we need to look at its predecessor, the Hubble Space telescope. The Hubble Space Telescope was launched in 1990 and has been operating in the challenging conditions of space for over 30 years. Hubble mainly sees in optical and ultraviolet wavelengths, While the Webb telescope sees in infrared. The main difference is that infrared helps The Webb telescope gaze through dusty regions of space that the Hubble can’t penetrate. Webb's mirror is also much bigger than Hubble’s. A larger mirror means that Webb can peer farther back into time than Hubble is capable of doing.

In 2012, 10 years before Webb's first images came out, the Hubble team delivered the deepest view of space known as the XDF abbreviated as the eXtreme Deep Field. NASA and the European Space Agency released a series of Hubble Deep Fields over the years. They're still beautiful, but they also highlight just how powerful Webb is by comparison.

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