- 3627 - JAMES WEBB TELESCOPE - first observations? James Webb Space Telescope is an infrared observatory orbiting the Sun 1 million miles from Earth to find the first galaxies that formed in the early universe and to see stars forming planetary systems.
-------------- 3627 - JAMES WEBB TELESCOPE - first observations?
The James Webb telescope will complement and extend the discoveries of the Hubble Space Telescope, with longer wavelength coverage and greatly improved sensitivity.
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- Launched December 25, 2021, Webb is NASA’s largest and most powerful space science telescope. It is an observatory with a large infrared telescope that has an 6.5-meter primary mirror.
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- Webb will study every phase in the history of our universe, ranging from the first luminous glows after the big bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own solar system. It will build on the Hubble Space Telescope's discoveries.
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- On January 8, 2022, the Webb will fully deployed the telescope's 21-foot, gold-coated primary mirror. The Webb’s thrusters fired and inserted the space telescope into orbit around the Sun at the “second Lagrange point“, or L2, its final destination, nearly 1 million miles from Earth.
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- Webb's location gives it a wide view of the cosmos, and will keep the telescope's optics and scientific instruments cold enough to function and perform optimal science.
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- Webb’s First Deep Field image shows galaxy cluster SMACS 0723, a cluster teeming with thousands of galaxies, including the faintest objects ever observed in the infrared wavelengths.
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- This first deep field image was taken by the Near-Infrared Camera (NIRCam). It is a composite made from images at different wavelengths, totaling 12.5 hours, achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks.
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- The image shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago.
Webb has delivered the deepest and sharpest infrared image of the distant universe so far , and in only 12.5 hours.
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- For a person standing on Earth looking up, the field of view for this new image, a color composite of multiple exposures each about two hours long, is approximately the size of a grain of sand held at arm’s length. This deep field uses a lensing galaxy cluster to find some of the most distant galaxies ever detected.
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- Another detailed observation of WASP-96b shows hot, puffy planet outside our solar system reveals the clear signature of water, along with evidence of haze and clouds that previous studies of this planet did not detect.
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- With Webb’s first detection of water in the atmosphere of an exoplanet, it will now set out to study hundreds of other systems to understand what other planetary atmospheres are made of.
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- Southern Ring Nebula is a planetary nebula, an expanding cloud of gas that surrounds a dying star, is approximately 2,000 light-years away. Webb’s powerful infrared eyes bring a second dying star into full view for the first time. From birth to death as a planetary nebula, Webb can explore the expelling shells of dust and gas of aging stars that may one day become a new star or planet.
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- Webb’s view of Stephan’s Quintet, which is a compact group of galaxies, located in the constellation Pegasus, pierced through the shroud of dust surrounding the center of one galaxy to reveal the velocity and composition of the gas near its supermassive black hole.
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- Scientists can get a rare look, in unprecedented detail, at how interacting galaxies are triggering star formation in each other and how the gas in these galaxies is being disturbed.
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- Webb’s look at the “Cosmic Cliffs” in the Carina Nebula unveils the earliest, rapid phases of star formation that were previously hidden. Looking at this star-forming region in the southern constellation Carina, as well as others like it, Webb can see newly forming stars and study the gas and dust that made them.
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- This is just the first days of a beginning of astronomical observations that will open up new discoveries in the Universe. Google these names to see this remarkable images in the Web.
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July 15, 2022 JAMES WEBB TELESCOPE - first observations? 3623
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--------------------- --- Friday, July 15, 2022 ---------------------------
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