Basically the Earth's centripetal acceleration (a=v^2/r) approx. equals the gravitational pull of the Sun at Earth's orbit (a=Gm/r^2), conservation of angular momentum (J=vmr) keeps Earth in orbit around the Sun (I've put this in more detail elsewhere in the comments).

Hint: Investigate the physical significance of Einstein`s field equation, G=8(pi)T , here in units s.t. "G"=c=1. Where "G" is the gravitational constant, not to be confused with the tensor G. And, divT=0.

@jqs1943 I'm not referencing to your outlook on the superstring frequencies of matter, I'm simply stating that the logic in saying "if light and heat came from the sun, would it not be logical to assume that space would be lit up and extremely hot?" is wrong.

exactly, and so are most of our opinion's

Re: "Exact Wall Soln."/ For example, null `z`-geodesics (ie, x=const.,y=const.) are geodesics on which the element of length is given by: ds2=c2(A)dt2 - (A)^(2n2/1-n)dz2. With A := 1 + a|z|/c2 => dz/dt=c2(A)^B. With B := (2n2 + n -1)/(n-1). Where we MUST have A>0. Note that the light ray undergoes a sharp turn at the `corner` located at z=0. What physical phenomenon would you attribute this effect to ??

@VarvaraBell Are you talking about amplifying lasers around the solar system's asteroid belt? Also, apparently gravity waves are still swirling around space-time since the beginning of the universe, and are thought to be exploitable for big bang research. Apparently a satellite is being put up for that purpose.

"Have we found Gravity waves Yet?"

One biggest question in Einstein's theory: Wtf happened to his hair?

You might also want to take a look at the Vis-viva equation (or the orbital energy conservation equation).

"10^-26 what meters?"

@ScienceIsKnowledge