Collimation aligns a telescope's parts for the sharpest images. Most telescopes need collimation at some point; reflectors need it often. Tools like laser collimators or Chashires help align the ...

DULUTH — Did you receive a telescope as a holiday gift? Even if it was years ago and that instrument is now hidden away in an attic, consider taking it out again. There are all sorts of wonderful ...

The hottest commodity in astronomy these days is time — specifically, time using NASA's brand-new, ultra-powerful observatory. The James Webb Space Telescope, also known as JWST or Webb, launched on ...