Why can’t a spacecraft go “beyond Earth’s gravity”?

Answer 1

It depends on what you mean by "beyond Earth's gravity." Strictly speaking, the gravitational influence of Earth (or any body) extends to infinity. So in that sense, nothing is beyond Earth's gravity, but it's not a very useful statement in that case.

There are plenty of spacecraft that have been sent to a distance where Earth's gravity makes no difference, and are hence beyond Earth's gravity in a pragmatic sense.

Answer 2

But they do. Voyager left the solar system so it went beyond not only earth's pull but the sun's as well. From a theoretical point of view, the earth's field extends to infinity (ok it gets really weak), so you never really escape it - it just doesn't make any real difference on the motion of the spacecraft.

Answer 3

The gravitational field of an object extends an infinite distance. However, the further away you are, the weaker the field is. If R is your distance from the Earth, the gravity gets weaker as

g = 1/R^2

So, if you move three times further from the center of the Earth, the gravity is 1/9 as strong.

Answer 4

You haven't been paying attention in space science class. Lots of spacecraft are way beyond earth's gravity right now..

Answer 5

What? of course they can leave earths gravity, how do you think we go into space? I think you need to clarify your question a little better.

Answer 6

The field is infinite, but once you get beyond a certain distance the force is so minute as to be negligible.
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Answer 7

It grew to become into named after the god Apollo, who grew to become into god of archery, plague, prophesy, herding etc. In later faith, yet no longer in mythology, Apollo will become a solar god. He will additionally become, the two in mythology and faith, a god of therapeutic. I don’t think of that's recorded everywhere why the specific spacecraft kind grew to become into named “Apollo”. notice that Apollo spacecraft have been created and examined long beforehand the moon missions.

Answer 8

They can