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Following the completion of critical mirror alignment steps, NASA’s James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve.

On March 11, the Webb team completed the stage of alignment known as “fine phasing.” At this key stage in the commissioning of Webb’s Optical Telescope Element, every optical parameter that has been checked and tested is performing at, or above, expectations. The team also found no critical issues and no measurable contamination or blockages to Webb’s optical path. The observatory is able to successfully gather light from distant objects and deliver it to its instruments without issue.

Although there are months to go before Webb ultimately delivers its new view of the cosmos, achieving this milestone means the team is confident that Webb’s first-of-its-kind optical system is working as well as possible.



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Actually it was steam engine ship disasters that prompted the establishment of the NBIC, National Boiler Inspection Code. Back in the day boiler operation was considered a hazardous job, worse than coal mining. Standards in design, inspection, materials and techniques benefitted greatly. Surprisingly enough it was involvement from the insurance industry that drove it as they didn't want to payout, Hartford Steam Boiler and other later insurance companies evolved to drive regulation and improved standards of construction and safety.
 
Actually it was steam engine ship disasters that prompted the establishment of the NBIC, National Boiler Inspection Code. Back in the day boiler operation was considered a hazardous job, worse than coal mining. Standards in design, inspection, materials and techniques benefitted greatly. Surprisingly enough it was involvement from the insurance industry that drove it as they didn't want to payout, Hartford Steam Boiler and other later insurance companies evolved to drive regulation and improved standards of construction and safety.
And railroads! In the early days steam boilers also operated "in town" for heating and industry.
In the on-going war between engineers, skin flint owners, and operators with their own ideas, the poor boilers would vent their guts in spectacular fashion.
This one happened in 1948! The engine crew nearly always dies (often slowly) of horrible 400 degree steam burns in explosions like this
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And to this day. Many/most nuclear plant disasters (chernobyl and Fukishima) are steam boiler explosions
 
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