SOLAR SYSTEM

Detailed explanation-1: -Comet tails will always point away from the sun because of the radiation pressure of sunlight. The force from sunlight on the small dust particles pushing them away from the sun is greater than the force of gravity acting in the direction toward the sun.

Detailed explanation-2: -When far from the sun, a comet is like a stone rolling around the universe. But when it approaches the sun, the heat evaporates the comet’s gases, causing it to emit dust and microparticles (electrons and ions). These materials form a tail whose flow is affected by the sun’s radiation pressure.

Detailed explanation-3: -Comet tails come in two flavors: the ion tail and the dust tail. The ion tail is thin, blue and linear-points directly away from the Sun.

Detailed explanation-4: -The streams of dust and gas released from the comet 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.

Detailed explanation-5: -Comets develop tails as they approach perihelion-the place in their orbits when they are closest to the Sun. The Sun’s heat vaporizes some of the comet’s material, releasing dust particles that were trapped in the ice.