Will gravitationally pulling other planets into different orbits save us further down the road?

Question

OK, if our sun is destined to expire and we know of other plantes close to earths environment (minus trees and water which can easilly be reproduced) then : if we gravitationally pull these plantes into a different point of orbit, say with our own earth ( but will that throw earth dangerously out of its own orbit of the sun ) or with a larger planet ( which we could draw closer to the sun to maintain a level of comfort of warmth) but beyond the reach of the iminent Red Giant the sun will become, would that save us for long enough to colonize other places to call home? whatever, I have too many questions.

Answer 1

Um, darlin'? Seems like a whole lotta words there but i see your two basic questions. I think. Correct me if i'm wrong, okay?

Q1. In about 5 billion years, our sun is going to blow up into the Red Giant portion of its life. At that time Earth will become, effectively, part of the sun. Can we somehow escape that future, say by chucking other planets into the growing Red Giant instead of letting it gobble Earth up?

Q2. If we get moving, you think we can colonize other habitable planets before our sun does the Red Giant dance with its astronomical destiny?

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A1. I don't know if we'll be able to sacrifice the other planets to save our own. Maybe we will decide not to do that. Maybe we'll be gone from here already. It IS, after all, about 5 billion years into the future that this will be happening.

Even if we CAN do it, it seems like it'd be fairly pointless. After becoming a Red Giant, our sun will use its remaining nuculear fuel very rapidly. Then it'll begin to cool and contract. Eventually our sun will shrink to about the size of the earth. It'll have so little surface area from which to send out it's energy that it will only shine with a faint white light--and it will have become a White Dwarf. Over millions of years, it will continue to cool and get dimmer and dimmer as it fades from white to yellow to red and finally just goes out. Eventually our sun will be a Black Dwarf, a lump of cold dead ash hanging in this part of the cosmos.

A2. Yes. I do think we'll colonize other planets before our sun goes into the Red Giant part of its life, its' declining years.

Why would we not? We're smart and industrious. If we don't kill ourselves off before we learn to work together as a species, then why not? There must be millions of habitable planets out there--some of them already possessing sentient life. I wonder if THOSE beings would want us for neighbors? We're kinda rowdy...and loud...and prone to playing King of the Hill with guns and tanks and antiarmour missles and thermonuculear devices. I'm not sure i'd want us for neighbors, you know?

Answer 2

to maintain it marvelous and straightforward: The closer a planet is to the solar, the swifter it extremely is going to orbit around it, and the cost of the orbit will consistently cancel out the undeniable fact that a closer planet has a enhanced gravitational pull. So fairly, using fact planets orbit so quickly, they might not at all crash into the solar merely via gravity. The farther the planet is from the solar, the greater time it has to soak up one finished orbit.

Answer 3

You are asking cavemen about jet engines. we don't know how able we shall become in the far future.
but consider this - the sun will not change much for the next 5000000000 years. very primitive, multi cellular life appeared on earth less than 1000000000 years ago. humans of the present species appeared on earth about 200000 years ago. agriculture started about 10000 years ago.
what I'm trying to say is that there is enough time for:
learning every thing there is to learn, within the limitation of our present abilities to understand.
Change ourselves, hopefully to better, more intelligent creatures to be able to do the things we cannot do now.
destroy the world ourselves and make it unfit for life.
so there is no hurry to find what we could or could not do.