Asteroids


 * ASTEROIDS

What this is going to be about is asteroids. How much they weigh, what different shapes and sizes, how long they been on earth. Have anyone ever been up and try to discover it, and who was the first person to, who discover gave them there names.**

Information about our topic Asteroids:

Asteroids are rocky fragments left over from the formation of the solar system about 4.6 billion years ago. Asteroids can be found in space, they also can be found in many different shapes and color. They can be in many different forms also if you really look at them clso if you can. Some of the asteriods have so many different colors in one single asteroid,,,,

Asteroids I don’t think anyone on land has ever seen an asteroid in the sky before. They are call minor planets. They are small bodies of the solar system in orbit around the sun. There smaller than planets but larger than meteoroids.

As asteroids revolve around the Sun in elliptical orbits, giant Jupiter's gravity and occasional close encounters with Mars or with another asteroid change the asteroids' orbits, knocking them out of the Main Belt and hurling them into space across the orbits of the planets.

Scientists believe that strays or fragments have slammed into Earth in the past, playing a major role both in altering the geological history of our planet and in the evolution of life on it.

Asteroids were first observed with telescopes in the early 1800s, and in 1802, the astronomer William Herschel first used the word asteroid.  Asteroids are rocky and metallic objects that orbit the Sun but are too small to be considered planets.

 They are known as minor planets. Asteroids range in size from Ceres, which has a diameter of about 1000 km, down to the size of pebbles. Sixteen asteroids have a diameter of 240 km or greater. They have been found inside Earth's orbit to beyond Saturn's orbit. Most, however, are contained within a main belt that exists between the orbits of Mars and Jupiter.