![]() ![]() The distances between stars and galaxies are enormous and so new units of measurement are needed because familiar units like kilometres are too small to be useful.There are billions of other galaxies in the Universe and they come in a variety of shapes and sizes.Our own galaxy is called the Milky Way Galaxy.Stars are arranged in galaxies, held together by the force of gravity.The Sun is our closest star, but if it were farther away it would appear just like all the other stars in the sky at night.The main aims of this chapter are to ensure that learners understand the following: In this chapter learners will now be introduced to astronomy outside the solar system, which focuses on the studies of galaxies and the Universe. Thus far, the learners have only been exposed to solar system astronomy.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |