Space Print from NASA: The Hubble Telescope After Assembly. The telescope is being returned from its assembly stand. The Hubble Space Telescope (HST) was designed to see seven times further into space than had been possible before, without the distortion caused by the Earth's atmosphere. It is a reflecting telescope and its main mirror has a diameter of 2. 5 metres (NASA Media Archives). Buy this picture as an unframed print or poster, a framed print or a mounted box canvas print.