10. Cool Stars Matter (1996)

Iras (the Infrared Astronomical Satellite), which operated for much of 1983, provided a great deal of information on aspects such as the presence of cool, possibly planet forming, material around stars like Vega. Iso (the Infrared Space Observatory) is now performing well. Dr Helen Walker of Rutherford-Appleton Laboratory joins Patrick Moore to give the latest news on the probe.

Release date: 1996-08-19