James Webb Space Telescope team clears 1st instrument

An exoplanet hunter and first-light detector on NASA’s next-generation space telescope is ready to do science, six months after the observatory launched to space.

The $10 billion James Webb Space Telescope is completing commissioning by testing its four cutting-edge instruments and their various modes, which will enable Webb to study both distant galaxies and closer-up objects in the Milky Way or solar system.

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