Homepage of a radio telescope operated by Caltech in Hawaii. This radio telescope focusses on submillimeter frequencies. Be sure to look at the General Information link for info on telescope and the Astrophysics link to find information...

Site describes multiple resources for the beginner amateur radio astronomer. Great general information for beginners on basic radio physics and on the fundamentals of radio telescopes. Nice set of links to other useful sites.

For a man whose career involved the entire known universe, John Kraus had a remarkably insular upbringing. He was born and raised in Ann Arbor, Michigan, and earned his bachelor's, master's and doctoral degrees in physics, all at the...

Karl Jansky discovered extraterrestrial radio waves while investigating possible sources of interference in shortwave radio communications across the Atlantic for Bell Laboratories, and is often known as the father of radio astronomy....

Ultraviolet (UV) light has shorter wavelengths than visible light. Though these waves are invisible to the human eye, some insects can see them. The specific wavelength values are given. Uses and applications of these waves are explained.