First, it’s notable: You have to realize Einstein’s theory is a model of gravitational phenomenon per our observational affirmations. In … More
Do photons have mass if they are bent by gravity?
No. It’s a massless force carrier of matter, via the electric force (or the electro-magnetic force to be broader). It’s … More
How does the gravity of photons affect each other as they move?
Photons are massless and so do not influence the gravitational field. They do propagate through space-time, which is influenced by … More
What is the origin of gravity?
It’s possible gravity is an interaction between massive particles with force carriers exchanging in an unseen dimension. This would describe … More
What is the main source of the Sun’s light and heat?
Gravity. Without it there can’t be all those atoms crushed together and radiating electromagnetic radiation and particles and at such … More