![]() Hubble flew into low-Earth orbit aboard Space Shuttle Discovery on Apr. When did Hubble launch? When did JWST launch? Scientists will have the unprecedented opportunity to observe objects with both JWST and Hubble simultaneously, bringing the cosmos to life in a wide range of light. JWST and Hubble also complement each other’s capabilities. Although JWST is optimized for infrared, it overlaps a little with Hubble and can see red, orange, and gold visible light. Hubble sees ultraviolet light, visible light, and a small slice of infrared. Like Hubble, JWST is a multipurpose observatory that anyone can use. When Hubble’s mission ends, JWST can step in - to a certain extent. In 2021 the observatory experienced a string of technical glitches. ![]() By studying them, scientists will learn what conditions were like shortly after the universe was born. The first stars in these early galaxies produced the chemical elements of life as we know it - the very star stuff that we’re made of. The telescope can see mid-infrared wavelengths that will allow it to spot galaxies born just 200 million years after the Big Bang. Scientists want to see those fleeing galaxies, which is where JWST comes in. These galaxies are very far away, and due to the expansion of the universe, they are moving away from us so fast that the wavelengths of their light have shifted into the infrared, far beyond Hubble’s detection capabilities. The oldest galaxies in the deep field images formed just 400 million years after the Big Bang.īut there are even older galaxies that escaped Hubble’s detection. ![]() These images are filled with countless glittering galaxies and distant objects captured by Hubble after it stared at the same patch of sky over multiple days. To understand how the two telescopes relate to one another, we need to look back through Hubble’s famous deep field images. JWST was designed to pick up where Hubble left off in studying the early universe. Is JWST a successor or replacement for Hubble? What does that mean? As we celebrate the release of JWST's stunning first images, let’s compare the two telescopes and explore what to expect from JWST’s images of the cosmos. While JWST is sometimes called Hubble’s replacement, NASA thinks of it as a successor. JWST built on three decades of discoveries by the iconic Hubble Space Telescope. The initial release showcased the observatory’s abilities. NASA finally released the James Webb Space Telescope’s first full-color science images on July 12. Even though we don’t have access the super high quality and high resolution images of the new telescope, there is still a significant difference between new and old telescopes.The wait is over. You won’t notice the technology until they’re placed next to old images of the same area from the past progress. Most people accustomed to the stunning cosmic beauty may not be too interested in the images from the new Webb telescope at first glance. The scientific community is discussing several new images released by the Webb Space Telescope (Webb) on July 12, and you’re thinking, “What’s so great about this?” If you think so, you may change your mind after reading this article. ![]() By comparing the old and new images of the same region with the Webb Space Telescope and Hubble, we can understand the importance of this development, which the whole world of science and astronomy is talking about. We have already seen the first scientific images of NASA’s New Eye for the Sky “James Webb Telescope”, but without the predecessor photos to compare, it may be difficult to understand how good this achievement is.
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