The Large Binocular Telescope in Arizona promises a revolutionary way to look at the night sky. The light from its two eight-and-a-half metre mirrors will produce images of unprecedented clarity and power, offering a glimpse beyond our solar system to the very beginning of time.

Dr Chris Lintott visits Arizona to see the telescope first hand, while Sir Patrick Moore talks to the astronomers who will use it.

Sir Patrick Moore hosts an autumn equinox party in his garden and talks to Dr John Mason about what to look for in the night sky at this time of year.