In our real Universe, matter and energy are distributed almost perfectly evenly and the

curvature of space is very tiny.

Moreover, in the billions of years since, as stars and galaxies formed, the

curvature of space likely has drifted from its "fine-tuned" value.

Ferris takes Einstein's General Theory of Relativity and in a few of pages offers what journalist Charles Krauthammer has described "as intuitive an account of its essential idea - the

curvature of space - as I have ever read.

Among other cosmic parameters, says White, the BOSS analysis "also provides one of the best-ever determinations of the

curvature of space.

The cluster is so massive that it magnifies the light from faraway galaxies behind it due to a phenomenon called gravitational lensing, where the

curvature of space acts like a giant funhouse mirror to stretch and brighten distant objects.

Gravity Probe B confirmed the so-called geodetic effect--in which the

curvature of space shortens the length of the craft's orbit by 1.

The density of physical space can be described in "General Theory of Relativity" with the

curvature of space.

The planetary motion in our solar system was the ultimate test for Newton's gravitational theory 300 years ago; the motion of S0-102 and S0-2, Ghez said, will be the ultimate test for Einstein's theory of general relativity, which describes gravity as a consequence of the

curvature of space and time.

The finding that plants interact with gravity in a fundamental way suggested to this author that gravity is not a

curvature of space phenomenon but a wave phenomenon.

What the maps look like depends on certain characteristics of the Universe, for example on the

curvature of space.