0
What else can I help you with?
What force can prevent the universe from expanding?
The force that can prevent the universe from expanding is gravitational attraction. If the density of matter in the universe is sufficiently high, gravity can overcome the expansion driven by dark energy and the initial conditions of the Big Bang. This gravitational pull could lead to a scenario known as the "Big Crunch," where the universe eventually collapses back into a singular point. However, current observations suggest that dark energy is dominating, causing the universe to continue expanding.
Why is the univese expanding?
The universe is expanding because of force of big bang.
The redshift of light from distant galaxy provides evidence that the universe is?
The red shifts show the galaxies are under centripetal force and the red shift indicates the centrifugal force. This indicates that the universe is in continuity, the centripetal and centrifugal forces are in balance.
Do you believe that the universe is still expanding?
Yes, scientific evidence, such as redshift measurements of distant galaxies, indicates that the universe is still expanding. This expansion is believed to be accelerating due to dark energy, a mysterious force that counteracts gravity at large distances.
Why does space keep going and going and never stops?
Space is constantly expanding because of the force of dark energy, causing galaxies to move away from each other. There is no boundary or edge to the universe, so it appears to go on forever. Gravity from matter in the universe acts as a brake on this expansion, but dark energy seems to be winning, pushing the universe to expand at an accelerating rate.
Why do scientists believe the universe is still expanding?
Scientists believe the universe is still expanding primarily due to observations of distant galaxies, which are moving away from us, a phenomenon known as redshift. This observation supports the Big Bang theory, indicating that the universe has been expanding since its inception. Additionally, the discovery of dark energy, a mysterious force driving the acceleration of this expansion, further reinforces the idea that the universe continues to grow. Measurements of cosmic microwave background radiation also provide evidence of the universe's expanding nature over time.
What is a close universe?
The universe may be: 1) "open", which means it will continue to expand forever but at a decreasing rate. 2) "flat", which means it will eventually stop expanding but never reverse. 3) "closed", which means the universe will expand to a maximum size and then collapse in upon itself in a reversal of the big bang. The total mass-density of the universe determines which scenario will be realized. At a critical mass-density, the universe is flat. Some research has drawn scientists to believe the expansion of universe is actually accelerating. That means that the universe may actually be expanding more and more rapidly, due to a force called "dark energy". The existence of this dark energy would complicate all of the above scenarios.
If universe is expanding but mass of sun and planets is not then shouldn't gravity be reduced due to space-time and mass relation?
The answer is that the expansion of the universe is only noticeable over distances of hundreds of millions of light years or more. Over the much smaller distances found within galaxies and planetary systems its effects are negligible.
What is pulling the universe apart?
The expansion of the universe is causing galaxies to move away from each other, with space itself expanding between them. This expansion is driven by dark energy, a mysterious force that counteracts the gravitational pull of matter in the universe.
Why is the universe expanding and what force is it expanding into is it anti gravity?
The initial expansion of the universe was caused by the Big Bang's explosion of matter. Just as explosions here on earth cause expansion, so it was then. The math today, however, shows that the universe should be compressing again, as the energy lost over time would then be overridden by gravitational forces pulling everything back together. I'm sorry to say there's no such thing in our universe as anti-gravity, though. The universe's fate is generally accepted to be expansion forever at an ever slowing rate. To answer as to why this occurs, dark energy and dark matter are the forces at work - not anti-gravity.
How is the space itself expanding?
The space itself is expanding due to the continuous stretching of the fabric of the universe, causing galaxies to move away from each other. This expansion is driven by dark energy, a mysterious force that counteracts gravity on a cosmic scale.
Why your universe is expanding despite the gravitational force acting between galaxies?
Quite simply, gravitation is not enough to stop the movement. The movement itself is a leftover from the Big Bang.
