https://www.nasa.gov/image-article/einsteins-theory-of-relativity-critical-gps-seen-distant-stars/
First, the analogy with a person running up an escalator that is going down and the energy thereof is explained by newtonian physics and has nothing to do with general relativity. The analogy...
How true is the matter antimatter version of the Universe? The theory arose mainly out of theoretical considerations. According to this theory matter and antimatter particles are always produced as a pair and, if they come in contact, annihilate one another, leaving behind pure energy. The...
https://www.space.com/einstein-general-relativity-frame-dragging.html?utm_source=notification&jwsource=cl
Space-Time is relative-not fixed absolute,like Einstein`s General Relativity Theory predicted over 100 years ago !