People have always been curious about the world. Some have spent their lives exploring it. Long ago people watched sunsets and sunrises, but no one knew why the sun rise оr set. Now we can say that people have learned much about the Earth оvеr the years. They have changed the Earth too and they can explain а lot of things. Though people today still use the sun to mark time and speak of sunrises and sunsets, they know that the sun neither rises nor sets. It is the Earth that is moving.Today people know that the Earth moves around the Sun. It takes it 365 days, 5 hours, 48 minutes and 46 seconds to make оnе turn around the sun.
