science tech laser refrigerator laser_cooling optical_refrigeration engineering night_vision satellites in_theory
Lasers Eyed To Cool Satellite Cameras, Night-Vision Goggles

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by Charles Q. Choi

Instead of using lasers to heat targets, now researchers are shooting light beams that cool what they shine on.

Scientists want to see if novel refrigerators based on this research could reach temperatures just a few degrees above the coldest possible—absolute zero.

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