1) Home > Open > Core> Earth and Sun
2) Slow down time rate.
3) Stay "behind" the Earth, just like in the image. (edit: I think this bug happens at any position, but I'm not sure)
4) Fire hydrogen at the Sun
Earth changes its orbit and travels much faster for no reason. check out the velocity. (Earth's orbital velocity is just 29 km/s, as a reference). I'd like to see if anyone else experiences this, please let me know.
PS: My PC's graphic card is awful, so ignore the fact that the Earth looks like just a blue ball.