66E-78-Up Close And Personal With A Comet

From the dawn of recorded history, comets have been viewed as the bringers of everything from gloom and doom to water and life. In reality, comets are a sample of material which was present in the cloud of gas and dust which condensed to form our Sun and its planetary system. Until recently a comet's nucleus has remained a mystery enveloped in a veil of gas and dust.