James Webb Telescope passes review before launch

James Webb Telescope passes review before launch

NASA’s James Webb Gold Mirror Space Telescope underwent a major overhaul this week, a major milestone ahead of the $ 10 billion observatory launch later this year. The telescope, which has been observing the universe for more than 30 years, was out of order for a few days last month.

NASA said initial evidence suggested a degraded computer memory module was the cause of the computer problem. The technology of the payload computer dates from the 1980s and was replaced in 2009 during maintenance work.

The James Webb Space Telescope 21 foot 4 inch (6.5 meter) mirror will be fully extended and locked in place. NASA said, a final test took place to ensure that it would travel a million miles (1.6 million kilometers ), survive and is ready to discover the origins of the universe.

Scott Willoughby, Northrop Grumman’s prime contractor, had defined his design as a “Swiss watch 12 meters high and get it prepared it for this journey, which we bring in a vacuum of minus 400 degrees Fahrenheit (240 degrees Celsius), four times further than the moon.” He spoke at the company’s spaceport in Redondo Beach, California, from where the telescope is being sent to French Guiana to be launched on an Ariane 5 rocket.

NASA scientists want to use the Telescope look back in time more than 13.5 billion years ago and see for the first time the first stars and galaxies that formed a few hundred million years after the Big Bang by detecting Infrared rays. The current main Hubble Space Telescope, has only a limited infrared capabilities.

This is a important factor because by the time the light from the first objects reaches our telescopes it has shifted to the red end of the electromagnetic field spectrum as a result of the expansion of the space between objects through the universe as it expands.

Another focus will be the discovery of extraterrestrial worlds. The first planets orbiting other stars were in the 1990s Discovered years ago and there are now more than 4,000 confirmed exoplanets. Scientists from 44 countries will be able to use the telescope, with proposals that include the use of infrared functions to penetrate supermassive black holes in the center of galaxies, including our own.

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