Fri, Jun 29, 2018 - Page 7 News List

More delay, cost for NASA’s newest space telescope


A 2015 artist’s rendering shows the James Webb Space Telescope.

Photo: AP / Northrop Grumman / NASA

NASA’s next-generation space telescope has been delayed yet again at a staggering cost of US$1 million a day.

For the third time in less than a year, the space agency on Wednesday announced a lengthy postponement for the James Webb Space Telescope.

The observatory would now fly no earlier than 2021; until last fall, it was on the books for a launch this year.

The telescope’s overall cost is now expected to reach nearly US$10 billion.

Development cost alone is to exceed the US$8 billion cap set by the US Congress by more than US$800 million and require reauthorization.

An independent review board cites worker error and embedded hardware problems for much of the escalating costs and delays.

In an acoustic test of the telescope earlier this year in California by prime contractor Northrop Grumman, dozens of loose fasteners — about 70 pieces in all — came off. A few pieces are still missing and could be inside the observatory.

In another mishap, an improper solvent was used to clean spacecraft propulsion valves. No one checked to see whether the cleaner might damage the equipment, review board chairman Tom Young said.

NASA was repeatedly over-optimistic in the work schedule, especially given the complexities and unique features of the Webb telescope, Young said, adding that its sunshield, the size of a tennis court once unfurled in space, is needed to keep the infrared telescope cold and is a major risk area.

Despite the many problems, the review board urges that the project continue given its “compelling” scientific potential and national importance, Young said.

Webb — considered a successor to the Hubble Space Telescope — is meant to peer farther into space and deeper into time than ever before. It is to operate from a point 1.6 million kilometers from Earth, unreachable by astronauts like the low-orbiting Hubble was.

“Make no mistake, I’m not happy sitting here having to share this story. We never want to do this. We always want to talk about the successes that we have,” NASA Science Mission Directorate associate administrator Thomas Zurbuchen said.

NASA should have been providing better oversight and is part of the problem along with Northrop Grumman, Zurbuchen said.

Besides improved oversight, he said there would be more quality control and more NASA engineers would be taking part in everything moving forward.

“We have to get this right here on the ground before we go to space,” Zurbuchen said. “Webb is worth the wait.”

The review board has issued 32 recommendations and NASA intends to implement them all, officials said.

NASA in September last year announced it was delaying Webb’s launch to next year. Then in March, the launch was postponed to 2020. Now it is March 30, 2021.

Young said if the board’s recommendations are “rigorously implemented,” then the date is feasible.

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