Wonders of the Solar System

and on a philosophical note . . . we have got 5 billion years to locate and find a way of getting to another hospitable planet are we gonna make it ?

It's vanishingly unlikely that the expansion of the sun is going to be a problem that finishes us off, not that it wouldn't, just that it is way way down the list of dangers that could conceivably end humanity.

We are far far more likely to be stuck by a large object from space over the next five thousand million years - that would snuff out all life on earth - it's a mathematical (~) certainty - but even that pales into insignificance compared to more pressing issues.

Worrying about the sun's expansion for us is like a 12th century villager being under siege by a enormous well armed militia that out numbers the villagers 10,000 to 1 - intent on killing and burning and raping everyman woman and child . . . worrying about the nuclear proliferation in the late 23rd century.