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NASA’s giant Webb telescope succeeds in key pre-launch test – Bangkok Post
WASHINGTON – The world’s largest and most powerful space telescope unfolded its giant golden mirror for the last time on Earth on Tuesday, a key milestone before…

WASHINGTON – The world’s largest and most powerful space telescope unfolded its giant golden mirror for the last time on Earth on Tuesday, a key milestone before the $10 billion observatory is launched later this year.
The James Webb Space Telescope’s 21 feet 4 inch (6.5 meter) mirror was commanded to fully expand and lock itself into place, NASA said — a final test to ensure it will survive its million-mile (1.6 million kilometer) journey and is ready to discover the origins of the Universe.
“It’s…
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