'Giant erector set' supports Webb Telescope test component

(Phys.org)—A new photograph taken inside the giant clean room at NASA's Goddard Space Flight Center in Greenbelt, Md., shows what looks like a giant Erector Set supporting a test component of the James Webb Space Telescope.

Scanning Webb's surrogate eye

(Phys.org) -- Engineer Erin Wilson adds aluminum tape to electrical cables to protect them from the cold during environmental testing of special optical equipment. These tests will verify the alignment of the actual flight ...

The new world of gamma-ray optics

Scientists discover that certain materials like silicon or gold exhibit a surprisingly large refractive index for extremely high energetic gamma-rays.

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