アメリカ ・NASA、可視光観測であるハブル宇宙望遠鏡の次世代となる赤外線反射宇宙望遠鏡 JAMES WEBBは、反射鏡は六角形(hexagons)の18枚を広げるとBerylliumで作られている反射鏡は金膜(50g)で覆われていおり、幅は6.5mになる。宇宙が膨張しているが、それに伴い光も膨張する。そのため、紫外線であった光は赤外線に変わるため、赤外線を測定して宇宙を知る術とするとのこと。
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