Mars is a strange world; with its deserts, its icy poles, and its two dwarf moons it is quite unlike our own Earth. At present it is better placed for observation than will be the case for the next ten years; Patrick Moore tells you what to look for-and what astronomers hope to find out during the next few weeks.
This month's guest is Philip Syrett, who tells you the sort of answer that has so far been found to the fascinating question-'Is there life on Mars?'.
