The Cosmos has been the center of curiosity for humans since the very early time due to its immenseness or maybe due to its magical & mysterious appearance . What so ever no one can solved it yet . Many cults such Galileo Galilei & copernicus & many more had sacrificed their whole lives to space science & astronomy to solve it but couldn’t do it completely . But that doesn’t mean that they have failed . They have given us precious theories about the Universe & who can forget the telescope of Galileo . On the basis of their theories we have developed modern science & now we know much more than them about Universe but it’s not finished yet whatever we’ve managed to know is only 0.01℅ of the whole or maybe less than that . But our science has developed well enough & we’re trying beyond our limite to explore the universe . In the way to explore our scientist had created Hubble space telescope which has exposed many mystery about Universe . & It was a completely overwhelming performance of Hubble . But it is not enough hence NASA has been working on a telescope project called Webb which will rewrite the space science , it will describe the How the universe was created & How a galaxy born or die by it’s all developed technology . So here are few things you need to know about The Webb.
The James Webb Space Telescope :sometimes called called simply Webb will be a large infrared telescope with a 6.5-meter primary mirror. The telescope will be launched on an Ariane 5 rocket from French Guiana in October of 2018.
Webb will be the premier observatory of the next decade, serving thousands of astronomers worldwide. It 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.
Webb was formerly known as the “Next Generation Space Telescope” it was renamed in Sept. 2002 after a former NASA administrator, James Webb.
Webb is an international collaboration between NASA & the European Space Agency and the Canadian Space Agency . The NASA Goddard Space Flight Center is managing the development effort . The main industrial partner is Northrop Grumman; the Space Telescope Science Institute will operate Webb after launch.
Several innovative technologies have been developed for Webb. These include a primary mirror made of 18 separate segments that unfold and adjust to shape after launch. The mirrors are made of ultra-lightweight beryllium. Webb’s biggest feature is a tennis court sized five-layer sunshield that attenuates heat from the Sun more than a million times. The telescope’s four instruments – cameras and spectrometers – have detectors that are able to record extremely faint signals. One instrument (NIRSpec) has programmable micro shutters , which enable observation up to 100 objects simultaneously. Webb also has a cryocooler for cooling the mid-infrared detectors of another instrument (MIRI) to a very cold 7 K so they can work.
Webb will be a powerful time machine with infrared vision that will peer back over 13.5 billion years to see the first stars and galaxies forming out of the darkness of the early universe. To find the first galaxies, Webb will make ultra-deep near-infrared surveys of the Universe, and follow up with low-resolution spectroscopy and mid-infrared photometry (the measurement of the intensity of an astronomical object’s electromagnetic radiation) . To study reionization, high resolution near-infrared spectroscopy will be needed.
The first significant look back to the era of the universe when early galaxies were forming. The image is a long exposure of a very small area of the sky, which revealed a large number of very faint, and previously unseen, objects. These objects are some of the oldest and most distant galaxies and , as Stefano Cristiani said, “glimpse the first steps of galaxy formation more than 10 billion years ago.” Other deeper studies have come after, and Webb will also do deep field studies. Webb’s imaging capabilities and infrared vision will show us the early universe with unprecedented clarity. Credit: Robert Williams and the Hubble Deep Field Team and NASA .
The article is BySoummyy & above informations are courtesy of NASA…
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