Have you ever heard of Maria Mitchell? She was an American astronomer(天文学家).She was born in 1818.She liked to look at the stars.When she was a littlegirl,her father gave her a telescope(望远镜).She liked it because she could see the stars better.A few Have you ever heard of Maria Mitchell? She was an American astronomer(astronomer).She was born in 1818.She liked to look at the stars.When she was a littlegirl,her father gave her a telescope.She liked It because she could see the stars better.A few