This page provides background material and audiovisual materials to accompany the press release "Comet Collision 'Armageddon' Unlikely".

This work was carried out by Dr Paul Francis from the Australian National University. It has been peer reviewed and accepted for publication in the Astrophysical Journal.

Scientific Paper (pdf) giving full technical details


As a comet swings in from beyond Pluto, sunlight warms it up and causes molecules to vaporise off its surface. The signals from these molecules can be converted into sound waves by modern telescopes, giving us the chance to listen to the song of a comet.

Many many beautiful pictures of comets are available on-line. Here are links to a few: