Facts about Mars.
The sun is 93 million miles away from Mars. One day in the future Mars will have a ring. Why Mars's largest moon Phobos will be torn apart creating a ring by gravitational forces. On Mars there are signs of water such as ice on each pole.
Who: Christian Huygens
What did he use: Telescope
When: 1659
Where: his house
Why: ?
How: ?
What did he use: Telescope
When: 1659
Where: his house
Why: ?
How: ?