Could light being reflected into space circle round due to the effects of gravity and return to Earth?
Wouldn't that mean that there is an infinitesimal chance that there is a sweet spot in the sky where you could see the Earth millions or even billions of years ago without having to achieve FTL travel and overtake light leaving Earth?
Wouldn't that mean that there is an infinitesimal chance that there is a sweet spot in the sky where you could see the Earth millions or even billions of years ago without having to achieve FTL travel and overtake light leaving Earth?
