Comets reflect light from the sun. This is the same way you see the moon glowing. When a comet's orbit nears the Sun it starts to warm up since they are usually black in colour. Water vapour sublimes from the surface of this 'dirty snowball' and forms a cloud of ice crystals known as the 'Coma'. It is this white cloud that reflects sunlight and makes it visible to us.
A comet's tail is formed by the solar wind pushing on the comet's coma (the cloud of gas and dust surrounding the comet's nucleus). This results in the material in the coma being stretched out into a tail that points away from the Sun. The tail always points away from the Sun due to the force of the solar wind.
As a comet approaches the sun a coma or tail forms from gases and dust released from the comet as it thaws in the warming sunlight. The solar wind pushes the tail away from the sun, the tail therefore is always being blown away from the sun no matter what position the comet is in with respect to the sun.
The tail of a comet is longest when the comet is closest to the sun, as the sun's heat causes the comet's icy surface to vaporize, creating a bright glowing tail that streams away from the comet.
Venus is a planet, not a comet, so it does not have a tail.
Comets are the celestial bodies that appear in the sky at regular but long intervals and have a tail. This tail forms as a comet gets closer to the sun, causing ice and dust to vaporize and stream away from the comet, creating a bright extended tail.
comet
A comet's tail is always pointed away from the Sun due to the solar wind. As the comet moves closer to the Sun, solar radiation and solar wind push the dust and gas away from the comet, creating the tail that appears to extend ahead of the comet in its orbit.
the tail
As it goes through space, the sun (or other stars) melt it. This creates a big tail behind the comet.
The comet's tail is in front of the comet, not after
The coma, the nucleus, and the tail are the parts of a comet after the tail has formed.
The three main parts of a comet are the nucleus (solid core made of ice and dust), coma (gaseous envelope surrounding the nucleus), and tails (two types, ion tail composed of ionized gas and dust tail made of dust particles).
The tail of a comet is longest when the comet is closest to the sun, as the sun's heat causes the comet's icy surface to vaporize, creating a bright glowing tail that streams away from the comet.
In the Tail of a Comet was created on 2000-04-25.
Venus is a planet, not a comet, so it does not have a tail.
A comet
Comets are the celestial bodies that appear in the sky at regular but long intervals and have a tail. This tail forms as a comet gets closer to the sun, causing ice and dust to vaporize and stream away from the comet, creating a bright extended tail.
The tail of a comet is luminous because it scatters and reflects the light from the sun.
comet