Question

What is remarkable about the direction of a comet’s tail?

Answer 1

What is remarkable about the direction of a comet’s tail?

The streams of dust and gas thus released form a huge, extremely tenuous atmosphere around the comet called the coma, and the force exerted on the coma by the Sun's radiation pressure and solar wind cause an enormous tail to form, which points away from the Sun.

Answer 2

It's impossible to tell where a comet is heading based on the way its tailpoints. A dust tail is produced by microscopic dust particles released from the comet by the Sun's heat and driven away by sunlight (solar radiation pressure