With gold-plated space telescopes promising to discover distant worlds and unravel the deepest mysteries of the universe, radio astronomy can sometimes feel a bit passé. But lest you think the search for extraterrestrial intelligence is no longer sexy, a glorious new photo collection featuring radio observatories…
Construction is well underway on what will become the world’s largest radio telescope. Once complete, the half-kilometer-wide dish will explore the origins of the Universe and scour the skies for signs of extraterrestrial intelligence.
In 1890, Arthur Kennelly, an electrical engineer working for Thomas Edison, wrote a letter to the director of the Lick Observatory. He described an interesting experiment being undertaken by the great inventor that may have been the first radio telescope — forty years before its official invention.