James Webb Space Telescope's most heat-sensitive instrument continues cooling to absolute zero - Space.com

The observatory's MIRI instrument needs to cool down almost to absolute zero, the temperature where the motion of atoms stops, before it can start observing the universe.

The James Webb Space Telescope continues to cool down as it prepares to take its first scientific images of the distant universe this summer. One instrument in particular needs some extra help to acc… [+2525 chars]

full article...