Why is it people assume any type of tiome travel is possibly outside a spaceship?
If you were to travel back in time a day in (largely) static space (ala Back to the Future) you'd end up in deep space millions of miles from Earth.
Anyways ...
If I could travel back in time, I'd go back .0001 Seconds before I went back in time ....
That way I would emerge exacty as I was inputting the time that I wanted to go (.0001 seconds in the past) ... but before I could press the 'okay' button I would re material in the exact same place and destroy myself and the machine.
Creating a MASSIVE paradox (As if I killed myself and destroyed the time machine, how could I go back to kill myself and destroy the time machine?) and buttfucking the galaxy presumeably and elevating me to Godhood ... presumeably <.<
Edit: Either that Or I'd go back 3.4 Billion years with a space suit and play with the strains of viral DNA and then go back to our time and see if it made a difference o.o
If it turns out it was a bad idea, worst comes to the worse I can always go back 3.4 billion years, sneak up on the past me about to play with the virus' DNA and kill him.