NASA unveils prototype telescope for future gravitational wave observatory
Summary: NASA has unveiled a full-scale prototype for six telescopes that will help detect gravitational waves in space. This is part of the LISA mission, led by the European Space Agency, set to launch in the mid-2030s.
The telescopes will use lasers to measure tiny distances between three spacecraft arranged in a large triangular formation. Each side of the triangle will span about 1.6 million miles.
The prototype, called the Engineering Development Unit Telescope, features a gold-coated mirror to enhance infrared laser reflection. It is made from a special glass-ceramic that maintains its shape across temperature changes.
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