is space expanding faster than light

is space expanding faster than light on May 29, 2021

This is all quite beyond me, but fascinating nonetheless. Massless particles in vacuum move at the speed of light, while everything else — a particle with a mass somewhere or a massless particle in a medium — will always move slower than the speed of light. Then came 1998 and the Hubble Space Telescope (HST) observations of very distant supernovae that showed that, a long time ago, the universe was actually expanding more slowly than it is today. If space is expanding faster than light, wouldn't that mean that there are some parts of space where there exists no gravitational field because gravity travels at c also. It's hard to imagine just how big the universe is. Hey it isn't any weirder than dark matter and dark energy!

The expansion of the universe causes distant galaxies to recede from us faster than the speed of light, if proper distance and cosmological time are used to calculate the speeds of these galaxies.

The universe is also not expanding slower than light. Unless, somehow, space itself were expanding faster than the speed of light. This spherical bubble encloses a region where all objects move away from a central observer at speeds less than the speed of light . But so far, faster-than-light travel is possible only in science fiction. Cosmic expansion is characterized by the Hub.
When the universe first "popped" into existence approximately 13.75 billion years ago, spacetime itself began expanding at speeds faster than the speed of light. At most it is a theoretical guess. b. is traveling faster than the speed of light. The number indicates that the universe is expanding at a 9% faster rate than the prediction of 67 kilometers (41.6 miles) per second per megaparsec . (See the "Can objects move away from us faster than the speed of light" question. Full podcast episodes: http://www.askaspaceman.comSupport: http://www.patreon.com/pmsutterFollow: http://www.twitter.com/PaulMattSutter and http://www.facebo. Scientists estimate that there are around 100 billion galaxies!! There was a very very very short period of time at the beginning of the universe called "The Inflationary Epoch". It is independent of how far A and B are from a reference point. The common theory that the universe is expanding at the speed of light is incorrect and a misconception.

Cosmic expansion does not have a speed measured in distance divided by time, so it cannot be compared against the speed of light. By which we mean that if we measure how quickly the most distant galaxies appear to be moving away from us, that recession velocity exceeds the speed of light. As the universe expands, at whatever speed, even faster than the speed of light, it is not just space that is expanding, but space-time. Over and over (and over and over) we're told the supreme iron law of the universe: Nothing — absolutely nothing — can go faster than the speed of light. While objects within space cannot travel faster than light, this limitation does not apply to changes in the metric itself. For larger distances, general relativity is needed to model the expansion and relative velocity is not well defined for two separate spacetime points in general relativity. How is the Universe able to expand faster than light? But space itself is expanding faster than the speed of light. If you were a small human in a small world, 1mm to you in your small world would be exactly the same, relatively, to 1mm in the big world. The Universe is expanding, but the expansion doesn't have a speed; it has a speed-per-unit-distance, which is equivalent to a frequency, or an inverse time.
Having said that, there is an analogy between cosmology and black holes.

So the answer is no, explosions can't move faster than the speed of light. Actually, there's something that travels faster than the speed of light all the time - an. Herein, did the universe expand faster than light after the Big Bang? As space expands, the scale factor gets bigger. It is independent of how far A and B are from a reference point. In fact, space itself can expand faster than a photon could ever hope to travel. Unfortunately, since universe is technically expanding faster than the speed of light (due to the expansion of space between matter), it is theoretically impossible to . I know it is a very simplistic calculation, but at least for the balloon analogy to work, this calculation should work out. As dark energy causes the universe to expand ever-faster, it may spur some very distant galaxies to apparently move faster than the speed of light.

Nothing travels faster than the speed of light, right?

The same argument applies to a black hole spacetime.

. There's no law that says it cannot. The Universe is expanding, and it is mysterious dark energy that is driving this expansion. February 2, 1999. David Festa says: August 12, 2015 at 9:11 am This Hubble Deep Field Image shows some of the most distant galaxies ever. But Einstein showed that the universe does, in fact, have a speed limit: the speed of light in a vacuum (that is, empty space).

Nearly 200,000 light-years from Earth, the Large Magellanic Cloud—a satellite galaxy of the Milky Way—meanders around our . Universe expansion speed Vs Speed of light. The light from distant objects does indeed get redshifted, but not because anything is receding faster than light, nor because anything is expanding faster than light. From its orbit 930,000 miles (1.5 million km) above Earth, the Planck satellite spent more than four years detecting the cosmic microwave background - a . Therefore, to even dream of reaching the edge of the universe, a spaceship would have to go as close as physically possible to the speed of light, somewhere around 99.9999999%. But Einstein showed that the universe does, in fact, have a speed limit: the speed of light in a vacuum (that is, empty space). This means that for every megaparsec — 3.3 million light years, or 3 billion trillion kilometers — from Earth, the universe is expanding . You seem to be imagining that the big bang was an explosion that occurred in a specific location in space. The Hubble Law states that space expands evenly everywhere, even though all galaxies in space are more or less not moving at all!But because Einstein's Special Theory of Relativity makes no statement about how space can expand, but only how things can move in space, an overlight-fast . But space itself is expanding, and that . Approximately 13. IloveTHIS Literal God. This is outside the visible universe. Joined: There is no physics that prevents a distant object appearing to travel faster than the speed of light.

I read an article online that said the universe is believed to be expanding faster than light speed. But no object is actually moving through the Universe faster than the speed of light.The Universe is expanding, but the expansion doesn't have a speed; it has a speed-per-unit-distance, which is equivalent to a frequency, or an inverse time.

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