Question for any space science geeks.

[Corn Pop]

Some people are going all conspiracy theory over this but I'm hear to ask a genuine question.

If there is a asteroid going to orbit the earth for the next couple months peoppe are calling a second moon probably so small no one will even see it correct me if wrong, that means earth's gravity pulls this asteroid im, so im wondering how it leaves.

What force and how will it get pulled away?. Like if satellites orbit and go around the earth they don't just leave do they?, so how is this object going to orbit the earth then can just leave?. There would have to be a greater force to pull it away right?, so what is it?. The sun?. The moon? I dont know how it works im interested to know. I love space and think it's amazing.

Thanks.

 

[jasonc]

Some people are going all conspiracy theory over this but I'm hear to ask a genuine question.

If there is a asteroid going to orbit the earth for the next couple months peoppe are calling a second moon probably so small no one will even see it correct me if wrong, that means earth's gravity pulls this asteroid im, so im wondering how it leaves.

What force and how will it get pulled away?. Like if satellites orbit and go around the earth they don't just leave do they?, so how is this object going to orbit the earth then can just leave?. There would have to be a greater force to pull it away right?, so what is it?. The sun?. The moon? I dont know how it works im interested to know. I love space and think it's amazing.

Thanks.

Earth will get another moon this month  — but not for long!

"You may say that if a true satellite is like a customer buying goods inside a store, objects like 2024 PT5 are window shoppers!"

www.space.com

 

[Corn Pop]

That's gives a bit more clarity.

 

[Whatever]

I think the "force" is called Inertia. The tendency of a body at rest to remain at rest or of a body in straight line motion to stay in motion in a straight line unless acted on by an outside force; the resistance of a body to changes in momentum.

This thing is coming from space at probably a fast speed. The Earth's gravity might not be strong enough to make it fall to Earth. It is the same principle they use to get a Voyager spacecraft to speed up by having it go by Jupiter and have the gravity of Jupiter pull on it and it swings around the planet and speeds up and comes out the other side going a lot faster than it was.

I always figured the "speed up" it got coming in, would be taken away by pull of gravity as it leaves. Kind of like coasting down a hill and then slowing down going up the next.