Golden mirror: Inside NASA’s new golden space telescope
NASA is preparing to launch its best space telescope yet, and it will gaze at the stars through a golden mirror. It’s not a single piece, but an array of 18 segments made of beryllium — a rare metal that is both strong and light — and coated with a microscopically thin layer of pure gold for maximum reflectivity. It spans a whopping 21 feet (6.5 meters) across. Expected to launch in 2020, the telescope is an $8.8 billion project that will offer astronomers unprecedented views of the cosmos. Webb will solve mysteries of our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it.
gaze – look steadily and intently, especially in admiration, surprise, or thought
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