Meet the people bringing us answers on the big bang, and their 13,000-pound helper

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The NASA James Webb Space Telescope is mounted on top of the Ariane 5 rocket.
The James Webb Space Telescope will be mounted on an Ariane 5 rocket that will launch from Europe's Spaceport in French Guiana. The telescope is so big that it has to be folded origami-style to fit into the nose cone of the rocket. (M. Pedoussaut / European Space Agency)

For some people, it’s a memoir or a work of fiction; others, their first company or app. For Scott Willoughby, it’s a more than 13,000-pound telescope that must unfold while in space and work in cryogenic temperatures.

"Webb is my middle child," Willoughby said of the James Webb Space Telescope — his baby of 12 years — which launched Christmas Day from Kourou, French Guiana, on South America's northern coast. It is a successor to the Hubble Space Telescope, which has observed distant stars and galaxies for more than 30 years but can't see the first galaxies formed in the universe as Webb will be able to.

Willoughby, the telescope’s program manager at aerospace and defense company Northrop Grumman Corp., is part of a cadre of thousands of aerospace workers across NASA, Northrop and other firms who have devoted a huge part of their careers — some inadvertently — to this singular mission.

James Webb Space Telescope Optical Engineer Larkin Carey examines a prototype at the Goddard Space Flight Center.
Webb optical engineer Larkin Carey examines two test mirror segments on a prototype of the Webb telescope at the Goddard Space Flight Center in Greenbelt, Md. (Chris Gunn / NASA )

Their work spans nearly two decades, including about a decade of delays, numerous technical challenges and a hurricane that almost derailed a testing round. It culminated with Saturday's launch, which Willoughby likened to seeing his two daughters leave home for college.

“When your kids leave home for that momentous occasion to start that adult life ... you want them to do that and be successful, but you also want to follow them," he said. "But you can’t.”

"I was only going to be on it for four to five years," said Sandra Irish, NASA's lead structures engineer for Webb. She has now worked on the program for 16 years.

Irish remembers crying as she watched the ship carrying the telescope, which was transported to the launch site in French Guiana from Seal Beach, pull into the harbor in October.

"Sometimes we like dull moments," she said, reflecting on her years of work throughout Webb's development and testing — before adding that there weren’t any.

The Webb telescope is designed to look for faint infrared light — the first light to streak across the dark universe 13.8 billion years ago — that will allow scientists to understand more about the origins of the universe. It has a mirror nearly three times larger than that of the Hubble Space Telescope and a five-layer sun shield unlike anything ever built before.

“There wasn’t anything else out there that I could look at and improve on,” said Jim Flynn, director of vehicle engineering for the telescope at Northrop Grumman, who has been on the program for 17 years. The sun shield, made of a film material called Kapton that's covered in a special coating, helps keep the telescope cool.