Please help me explain to my husband why you can't feel earth flying through space! It's only when two objects are in relative motion to one another that you can feel a force. Just like you cannot feel yourself in motion in a smoothly-riding car with the windows rolled up, you cannot feel the Earth moving through the Universe so long as you, too, are bound to planet Earth. Relative to the Earth, we experience some forces somewhat differently from how the Earth, overall, experiences it. If something exerted a differential force on you from the Earth, you'd feel it immediately.

Source: Forbes February 02, 2019 06:56 UTC