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 ...

I usually write about telescope dos and don'ts around the holiday season, but I thought I'd write about it now for a change. Here are the most important rules to remember. 1. Never, a million times ...

II. THE simplest form of the reflecting telescope is that in which only one reflecting surface is used, known as the Herschelian, or, as Sir John Herschel, in his work, “The Telescope,” calls it, “the ...

Save this article to read it later. Find this story in your account’s ‘Saved for Later’ section. Here at the Strategist, we like to think of ourselves as crazy (in the good way) about the stuff we buy ...

THE Imperial Russian Government in 1912 ordered from Messrs. Sir Howard Grubb and Sons, Ltd., a forty-inch reflecting telescope, and the preliminary designs for the instrument were made in ...