One concerned magnification. In striving to make ... Six to eight feet—that was the length of a good astronomical telescope in 1645. Five years later it was 10 to 15 feet. Ten years after ...

However, in most cases, such an advertised magnification is well ... a suggestion that few prospective telescope buyers – especially those neophytes of astronomy — do not want to hear: To ...

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

Prices for professional-grade equipment can reach astronomical heights beyond £10,000. Remember that two telescopes at wildly different prices will often see the same things if they have the same ...