... The Very Large Array of Radio Telescopes . ... The most photogenic array of radio telescopes in the world has also been one of the most productive. Each of the 27 radio telescopes in the Very Large Array (VLA) is the size of a house and can be moved on train tracks. ... The Pipe Dark Nebula . ... The dark nebula predominant at the lower left of the above photograph is known as the Pipe Nebula. ... Saturns Moon Tethys . ... Tethys shows a large impact crater that nearly circles the planet. ...