Finally here: After years of waiting, the first image from the James Webb Telescope was unveiled to the world on Monday, July 11, a great shot showing galaxies formed just after the Big Bang more than 13 billion years ago.
This first scientific and colorful picture of James Webb marks a day “Historic”, Congratulating President Joe Biden during the event held at the White House, six months after the launch of this space telescope into orbit, it is the most powerful ever designed. This photograph “The deepest and clearest infrared image of the distant universe so far”NASA says.
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Iron Planet, Dead Stars, Triple Sun: Explore the Strange New World
A gravitational lensing effect
Light, traveling in such a way, extends from the visible spectrum to the infrared, a wavelength invisible to the human eye, but not to James Webb.
The goal of the latter was, for this shot to depict cosmic distant times, that the galaxy’s cluster SMACS 0723, which acts as a magnifying glass, was also able to reveal very distant cosmic objects behind it: an effect called gravitational lensing.
The image, which is full of details, was taken over an observation period of 12.5 hours. In this way it shows thousands of galaxies, with specific structures at their center “Never seen before”, According to NASA. Research work is therefore barely beginning. “Researchers will soon begin to learn more about mass, age, history and composition.” Among these galaxies, the space agency added.
A $ 10 billion engineering gem, one of James Webb’s main missions is to explore the early ages of the universe. In astronomy, the equivalent of going back in time to see the distance, the observed light has traveled for billions of years before it reached us.
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This revolutionary telescope can unravel the mysteries of the universe
“A new era for astronomy has begun”Cornell University astronomer AFP Jonathan Lunain commented that the image was a “Fantastic”. Then he added:
“Although it can no longer view the most remote web, […] It shows the power of this extraordinary telescope: extreme sensitivity, wide wavelengths and bright image clarity. “
Nebula pictures this Tuesday
Although the names of James Webb’s first five cosmic targets were announced early last week, the images were still kept secret with envy to create suspense.
The following images of this actual surprise bag will be released during NASA’s online event on Tuesday. They both deal with their confidence as they choose to embark on their play activities, but they also tend to show astronomers around the world the power of the four scientific instruments on board.
Experts will be able to begin to interpret the data collected using dedicated software, signaling the beginning of a great scientific adventure.
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Two images of nebulae – very bright and huge clouds of gas and dust where they form – are on Tuesday’s program: the Carina Nebula and the Austral Ring. Another target, Stefan Quintet, is a group of galaxies communicating with each other.
They have disappeared and we do not know why
The first spectroscopy from the James Webb Telescope will be released to the public on Tuesday. It is not an image, but a technique used to determine the chemical composition of distant objects. In this case, WASP-96b, a giant planet that is basically made up of gas and is located outside our solar system.
The Exoplanet (a planet orbiting a star other than our Sun) is one of James Webb’s major areas of research. About 5,000 have been discovered since 1995, but they remain very mysterious. The goal is to study their atmosphere to determine if some people can be a useful world for the development of life.
Thanks to his observations at near and mid-infrared, James Webb will be able to see through the impenetrable dust clouds for his predecessor, the legendary Hubble Space Telescope. Launched in 1990 and still in operation, it has a small infrared capacity but works mainly in visible light and ultraviolet.
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Other major differences between the two telescopes: James Webb’s main mirror is about three times larger than Hubble’s and it has evolved much more: 1.5 million kilometers from Earth, in contrast to Hubble’s 600 kilometers.
Have we (finally) crossed paths with an extroverted civilization?
The publication of these first images marks the formal beginning of the first cycle of telescope scientific observation. Hundreds of observation projects proposed by researchers from around the world have already been selected by a committee of experts for this first year of operation.