Insight - NASA's latest mission to Mars - goes in search of the secrets below its surface.
3/4 How stars work, their life cycles and how their demise holds the key to our existence.
Patrick Moore talks to Professor John Zarnecki about Titan, a moon of Saturn. (2005)
The Galileo probe to Jupiter is due to send information about the giant planet. (1995)
Voyager 2 has been sending back remarkable new information about Neptune. (1989)
Patrick Moore learns what Voyager 2 has to tell us about Uranus. (1986)
Patrick Moore meets Professor Clyde Tombaugh, who discovered Pluto. (1980)
Patrick Moore discusses the first-ever attempt at surveying Saturn from close up. (1979)
A look at the close up pictures of Mars taken by the American probe, Mariner 6. (1969)
Patrick Moore reviews the Soviet mission to launch a manned rocket into space. (1960)