Shape of the universe - Wikipedia
In physical cosmology, the shape of the universe refers to both its local and global geometry. Local geometry is defined primarily by its curvature, while the global geometry is characterised by its topology (which itself is constrained by curvature). General relativity explains how spatial curvature (local geometry) is constrained by gravity.
What shape is the universe? - Astronomy Magazine
2021年2月23日 · As far as cosmologists can tell, space is almost perfectly flat. But what does this mean? The theory of general relativity, under which space itself can curve, allows for the universe to take...
What is the Shape of the Universe? - Space
2024年12月19日 · Here's how astronomers determine the geometry of the universe to describe its shape, and what it may mean for the fate of the cosmos.
What Is the Geometry of the Universe? - Quanta Magazine
2020年3月16日 · In our mind’s eye, the universe seems to go on forever. But using geometry we can explore a variety of three-dimensional shapes that offer alternatives to “ordinary” infinite space.
What is the shape of the universe? - NASA
If space itself is curved, there are three general possibilities for the geometry of the universe. Each of these possibilites is tied to the amount of mass (and thus to the total strength of gravitation) in the universe, and each implies a different past and future for the universe.
The shape of space - Einstein-Online
The different space geometries allowed by the big bang models – do we live on a hypersphere? An article by Markus Pössel. In three-dimensional space as we know it, geometry is governed, in excellent approximation, by the laws of Euclidean geometry, the …
Shape of the Universe – Theories and Models - My Space Museum
Shape of the Universe. The shape of space is a big mystery in astronomy. Space could be curved like a sphere, flat like a sheet of paper, or saddle-shaped. Careful studies of background radiation and galaxy clusters hint the universe is flat overall. But space might bend differently on larger scales we can’t see yet.
A cosmic shape could explain the fundamental nature of the …
2 天之前 · Physicists have created a 3D shape called the cosmohedron, which can be used to reconstruct the quantum wavefunction of the universe - and potentially do away with the idea of space-time as the ...
ESA - Why are things in space the shape that they are?
2003年7月23日 · The Hubble Space Telescope has provided us with glorious images of a different shape in space. For example, consider the shapes of nebulae – those swirling clouds of gas and dust in which newly hatched stars begin to shine.
Shapes of Space: Introduction - Brown University
The Shapes of Space. What is the shape of space? Before we can answer this question, we must decide what it means to ask it. "Space" here refers to the universe as a whole, but specifically to the vast vacuum lying between the stars and planets and other chunks of matter.