This fitted with no obvious cosmic phenomenon so people wondered if it might instead fit with one speculated about in science fiction.

The episode explores the violent cosmic phenomenon of supernovas, which on average occur once per galaxy per century or one billion times per year in the observable universe.

Synchrotrons were originally designed for use by high-energy physicists studying subatomic particles and cosmic phenomena.

Space travellers encounter many cosmic phenomena, such as a comet and several asteroid fields.

Audio-visual programs on various aspects of astronomy and different cosmic phenomena are also shown.