At the bottom of Utah rock of Spor Mountain, metal of that size that it was rare, was found to be used in the critical role in the venture by human beings to explore outer space. Beryllium, abysmally celebratory brilliance of light metal gem, was excavated and worked to fabricate James Webb Space Telescope (JWST) mirrors a technology that sets out to peer back through more than 13 billion years into the universe’s birth. As NASA’s Lee Feinberg put it, “To my knowledge, there’s no other place in the country that could’ve made beryllium of this quality.
The option of making beryllium mirrors would not have been very feasible” without the Materion Corporation company that possessed the technical capabilities to produce such high quality material.
The JWST mirrors are engineering wonders.6.5 meters across, the primary mirror consists of 18 hexagonal segments covered in a 100 nanometer thick layer of gold. The gold coating increases reflectivity of infrared light so that very weak signals from very far away galaxies can be detected. The mirrors are pancake flat and, Space Telescope Science Institute director Matt Mountain says, “If you stretch them all out across the United States, the largest bump would be no bigger than two inches.” It was the precision that it took to ensure that the capability of the telescope to capture clear, high definition pictures of the universe’s creation was not affected.
Forcing them into kissing out of those mirrors was no more hard than they were. The material, mined and milled into neat little spheres of beryllium dust, was rolled into sheet form, hammered flat into mirror blanks, and polished to a glaze shattering high shine. Every panel also was cryogenically tested at NASA’s Marshall Space Flight Center, where panels were chilled to 240 degrees Celsius to mimic space cold. The shape of the mirror was confirmed by laser interferometer measurements by the engineers so that it won’t alter at operating temperatures of 30 Kelvin (406°F) in JWST. It is significant because JWST deputy project manager Paul Geithner said, “Beryllium is a really good material for that. It’s really stiff and, once it gets below about 300 °F, it basically stops shrinking.”
In addition to being built to withstand the coldness of low temperatures, the mirrors were also built to withstand the rigors of space flight. They withstood launch’s high vibro acoustic loads without deforming. Its infinitesimal size some 20 kilograms per segment is a testament to JWST’s cutting edge engineering. The mirrors were then harmonized in space into a unified shape, precision to a 1/10,000th thinness of human hair. Lee Feinberg summed up how it was accomplished in these words “What’s even more amazing is that the engineers and scientists working on the Webb telescope literally had to invent how to do this.”
All the commotion for?. JWST is more than a telescope, though, the most ambitious human project ever to attempt to determine what the universe is all about. Unlike its ancestor, the Hubble Space Telescope in orbit around Earth today on an Earth orbiting mission, JWST is 1.5 million kilometers distant at the second Lagrange point (L2). Stabilized by the Earth and Sun. And shielded from the heat by a tennis court sized heat shield. With its sophisticated set of instruments like the Near Infrared Camera (NIRCam) and the Mid Infrared Instrument (MIRI), JWST can. capture pictures that show faint infrared embers of first galaxies in the universe and investigate other worlds’. atmospheres for signs of life. Its one of its record breaking findings is the galaxy JADES GS-z13-1, which was seen just 330 million years after the Big Bang.
Its infrared eyes looked into stunning hydrogen glows in this far off galaxy, contrary to our perception of the early universe timeline up to now. These are just a few of the secrets that JWST will reveal. “The things that are blurring to Hubble will be in sharp focus. And the things that Hubble doesn’t know are out there will be observable, back to the beginning of time as we understand it.” declares NASA chief scientist Waleed Abdalati. And the rest of the rest of the other things that Hubble has not yet discovered simply fall into line to be discovered, all the way back to the beginning of time itself. The James Webb Space Telescope is more than a science instrument it’s a badge of human creativity and cooperation.
The culmination of years of scientific investigation, exploration, and determination by NASA, the European Space Agency, and the Canadian Space Agency, the James Webb Space Telescope is the result of these three entities’ collective endeavor. From the site where beryllium was conceived from volcanic stone in Utah to the cutting edge building where its mirrors were fabricated, all are testaments to what human beings can accomplish once spurred by question and desire to learn more. As JWST operates, its gold mirrors will mirror not just light from distant galaxies but also the bright glint of minds that created it. With each photograph that it takes, it leaves us questioning our existence in the universe and at all the potentialities yet to be revealed.
