Comet Dust Particles

Lore & Background

The fragments of Comet Tiamat, known as Comet Dust Particles, are imbued with a metaphysical property that allows them to act as a conduit for the red string of fate (musubi). When consumed or touched, these particles enable individuals to retain memories across time and space, facilitating the connection between Taki and Mitsuha. This is a purely fictional concept within the film's narrative and is not based on real-world scientific research or missions.

Reader's Guide

It does state that the coma is generally made of water and dust, with smaller particles pushed into the tail by light pressure while larger ones remain on the orbital path. The source explains that X-rays are generated when highly charged solar wind ions interact with cometary atmospheres. It notes that as a comet crosses Mars' orbit at 1.5 AU, the solar wind becomes strong enough to blow gas and dust away from the coma, enlarging the tail. Comets have been observed since ancient times, with roughly one per year visible to the naked eye.

Did You Know?

• In the film, Comet Tiamat's fragments are depicted as glowing blue shards, not as typical cometary dust.
• The particles' ability to preserve memories is tied to the Shinto concept of musubi, not to any physical or chemical property.
• The meteor shower in Your Name. is a fictional event central to the plot, not based on any real astronomical occurrence.