Universe and the Earth Test - 1

Zodiac is an imaginary region that encompass the path of the planets. The zodiac is an area of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the sun across the celestial sphere over the course of the year.

Comets go around the Sun in a highly elliptical orbit. This is due to the fact that the planes of revolution of comets are not limited to the plane of the ecliptic in which the planets rotate.
As the comet comes closer to the Sun, the warming of its surface causes its materials to melt and vapourise, producing the comet's characteristic tail. A comet is an icy, small solar system body that, when passing close to the Sun, warms and begins to release gases through a process called out-gassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind acting upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles.

Jupiter is the fastest spinning planet in our solar system rotating on average once in just under 10 hours.

Meteoroid is a small particle from a comet or an asteroid orbiting the Sun. The light phenomenon which results when a meteoroid enters the Earth's atmosphere and vaporises is known as meteor.

Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days. Its day lasts longer than its orbit. It orbits the Sun every 224.65 Earth days, so a day is nearly 20 Earth days longer than its year.

Little chunks of rock and debris in space are called meteoroids. They become meteors -- or shooting stars -- when they fall through a planet's atmosphere; leaving a bright trail as they are heated to incandescence by the friction of the atmosphere.

The moon orbits the Earth once every 27.322 days. It also takes approximately 27 days for the moon to rotate once on its axis. As a result, the moon does not seem to be spinning but appears to observers from the Earth to be almost perfectly still. This is called tidal locking and it causes synchronous rotation. Hence, the same side of the moon always faces the Earth.

Due to the earth's rotation, stars appear to move. As the Earth rotates from west to east, the stars appear to rise in the East, moving across south to set in the west.