calibrate

To calibrate telescopes on Earth, NASA launches an ‘artificial star’ into orbit around Earth

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a red-light hued domed observatory beams four lasers, violet, indigo, yellow and green, from an opening in its roof into the night sky which connect to a large satellite in the sky.

In 2029, sky watchers may catch a glimpse of at least one human-made ‘star’ in the sky. Earlier this week, NASA announced plans to place a small satellite in orbit just over 35,400 kilometers above our planet’s surface – far enough so that the satellite can mimic a real star for telescopes at Soil. Scientists … Read more