Comet

From November 1985 through to the spring of 1986, our skies will once again be graced by the presence of that most evocative of all heavenly bodies, Halley's Comet. To celebrate this historic event, Carl Sagan and Ann Druyan have produced the definitive account of our extraordinary relationship with the comets - from the time when they were almost universally regarded as signs of impending doom and destruction, to the present day, when we have the knowledge and technical expertise to greet the arrival of Halley's Comet with a flotilla of exploratory spacercaft representing twenty nations...