How can the universe be infinite but expanding?

Although space may have been concentrated into a single point at the Big Bang, it is equally possible that space was infinite at the Big Bang. In both scenarios the space was completely filled with matter which began to expand. There is no centre of the expansion, the universe is simply expanding at all points.

How did the universe come into existence?

The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began.

Is the universe really infinite or just really big how can the universe be infinite if it was all concentrated into a point at the Big Bang?

The Universe was not concentrated into a point at the time of the Big Bang. If we go to smaller and smaller times since the Big Bang, the green circle shrinks to a point, but the 78 billion light year box is always full, and it is always an infinitesimal fraction of the infinite Universe.

How can infinite expand?

Originally Answered: How can an infinite universe expand? Increase infinity by any factor and it’s still infinity. If the universe is infinitely large, neither expansion nor contraction changes that. An infinite universe has no spatial boundary, and therefore no barrier exists to constrain its expansion.

Does the universe have infinite mass?

The geometry may be flat or open, and therefore infinite in possible size (it continues to grow forever), but the amount of mass and time in our Universe is finite.

How can the universe expand?

Universe Dark Energy-1 Expanding Universe The curve changes noticeably about 7.5 billion years ago, when objects in the universe began flying apart as a faster rate. Astronomers theorize that the faster expansion rate is due to a mysterious, dark force that is pulling galaxies apart.

How can the universe be infinite if it started expanding?

How can the universe be infinite if it started expanding 13.8 billion years ago? If the universe is infinite, it has always been infinite. At the Big Bang, it was infinitely dense. Since then it has just been getting less dense as space has expanded. Imagine a large flat rubber sheet with sand placed as closely together as possible on the sheet.

Is the universe infinite or finite?

If the universe is infinite, it has always been infinite. At the Big Bang, it was infinitely dense. Since then it has just been getting less dense as space has expanded. Imagine a large flat rubber sheet with sand placed as closely together as possible on the sheet.

Is it possible that the universe has always existed?

Fifty years ago, many scientists thought it possible that the universe had always existed. The two main theories were: “steady state”: the continual creation of matter at the centre of an expanding universe so the universe appears the same for all time, and

Is the universe pulsating or expanding?

“pulsating”: the universe goes through regular cycles of expansion and contraction for all time. But most scientists no longer believe these theories. It is generally considered “proven” that the universe we inhabit began about 14 billion years ago with the “big bang”.