What force causes the Ion (Gas) Tail to stream directly away from the Sun in a straight line?

Answer

The solar wind and its magnetic field

The ion tail is composed of ionized gas molecules stripped by the solar wind; since these ions are strongly affected by the Sun’s magnetic field, the tail is pushed directly away from the Sun, regardless of the comet's direction of travel.

What force causes the Ion (Gas) Tail to stream directly away from the Sun in a straight line?

#Videos

What is a Comet? | Learn about the Composition and ... - YouTube

celestial bodydustice