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 ...

Dark matter, matter in the universe that does not emit, absorb or reflect light, cannot be directly detected using conventional telescopes or other imaging technologies. Astrophysicists have thus been ...

Over the years of writing this column and putting on astronomy and stargazing presentations, I’ve received inquiries from many nice folks about purchasing a telescope for themselves or that special ...