Maybe they go back to the exact same spot in space when they travel back

hi

Time and space are intertwined the earth would be in the place it was at the time they wanted to travel to just like all the events would be happening too.. unless the discovery of time travel messes with physics in a completely
Unimaginable way this wouldn't be true

That's a possibility, but we can't know for sure.

*Note to self*. Don space suit before activating new time machine.

You'd think they'd account for that

I'm pretty sure that if someone who spends time making shitty image macros thought of that, professional time machine engineers would too.