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NASA released this information on Tuesday 12 July The first image of the most powerful space telescope Ever imagined, the breathtaking shots of James Webb, galaxies and nebulae, marking the beginning of scientific activity, have been awaited by astronomers around the world for years.
During the one-hour live broadcast, four new observations were unveiled one by one: Beautiful images of nebulae depict the life cycle of starsAnalysis of the atmosphere of an exoplanet and snapshots of a compact group of colliding galaxies.
“Every image is a new discovery,” NASA boss Bill Nelson said at the opening ceremony from the Goddard Space Center near Washington, where officials and scientists from the American and European space agencies gathered for the launch. Every offer A view of the universe to humanity that we have never seen before. A
How they are formed
The contents of this original surprise bag have been carefully kept secret for so long to add suspense.
Perhaps most impressive for their details and their great contrast of blue and orange: images Two nebulae, huge clouds of gas and dust.
The Carina Nebula, located about 7,600 light-years away, depicts star formation. Snapshots show hundreds of them that have never been seen before, but galaxies in the background and structures that we still don’t know what they are.
The Southern Ring Nebula is a so-called planetary nebula (although it has nothing to do with the planet): it is a huge cloud of gas surrounding a dead star.
Another goal has been revealed: Stephen’s Quintet, a cluster of galaxies. A total of five scenes are visible in this spectacular image, four of which interact with each other in a truly gravitational dance. The two are combined.
Tuesday is the last cosmic object whose philosophy has been revealed An exoplanetThis means that a planet in orbit around a star other than our Sun is called, one of the main lines of James Webb’s research.
It was not actually photographed, but was analyzed by spectroscopy, a technique used to determine the chemical composition of a distant object. In this case, WASP-96b, a giant planet composed primarily of gas.
Analysis of the light passing through its atmosphere as it passes in front of its star has made it possible to find it. The presence of water, NASA said. James Webb’s predecessor, the Hubble Space Telescope, has detected water in the atmosphere of exoplanets in the past, but James Webb’s observations are much more detailed.
On Monday, a first image taken by a telescope, depicting cosmic distant times, was unveiled in the presence of U.S. President Joe Biden, who delivered a salute. “Historic” moment.
The shot, which is full of detail, shows galaxies formed immediately after the Big Bang more than 13 billion years ago.
The telescope can work for 20 years
One of James Webb’s main missions, a 10 10 billion engineering gem and the most powerful space telescope ever designed, is actually exploring a very young universe. The purpose of this first exhibition was to give an overview of its power in this area.
James Webb was sent into space from French Guiana by an Aryan 5 rocket about six months ago, on Christmas Day. In the project since 1990, it has been located 1.5 million kilometers away from Earth.
The publication of these first images marks the beginning of many years of research aimed at changing our understanding of the universe.
Researchers around the world have saved time with observation with James Webb, whose program for the first year of its activities has already been carefully determined and made public by a committee of experts.
The telescope has enough fuel to work for 20 years. About 20,000 people around the world have worked on this project, creating a huge international collaboration.
Source: © 2022 AFP
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