A stop over

Solar system is so fascinating. I have many many questions about planets, gravity and Sun. I just can't get a grasp of how Earth and other planets are just floating in space and also moving in an orbit.

Here are a few questions I always ask when we start reading about solar system.

Why isn't Earth falling because of gravity?
Which other planets do humans live in?
Isn't there any living being on other planets? Really? Why?

pAdukA - vera planet pona jolly-a irukkum ila ma? (woundn't it be fun to go to other planets, ammA?)

ammA - enda planet? (which planet?)

pAdukA - Saturn or the dwarf planet pluto.

ammA - yen? (why?)

pAdukA - Saturn azhagA irukku. enakku Pluto pidikkum (Saturn looks beautiful and I like Pluto)

ammA - avalavu dooram laam poga mudiyaadhu innum (We cannot travel so long right now)

pAdukA - rocket la kudavA (even with rocket?)

ammA - yes

pAdukA - appo Mars or Jupiter la stop pannittu Saturn polaam. apparam Neptune la stop panni Pluto kku polaam dhaane? (Then we can stop at Mars/Jupiter and go to Saturn and later stop in Neptune and reach Pluto, right?)

ammA - ???!!!