Is Empty Space Truly Void of Energy and Matter?

AI Thread Summary
Empty space cannot be devoid of energy or matter, as gravity and electromagnetic fields permeate the universe. The concept of truly empty space is invalid, as detecting the absence of energy or matter is significantly more challenging than detecting their presence. Discussions often arise about regions lacking matter, but it is understood that fields are always present. Ultimately, science cannot definitively answer the existence of completely empty space. The consensus is that energy is always present in any region of space.
vivekfw66
Messages
8
Reaction score
0
Is there in reality empty space where there is no energy or matter? or has anyone seen or detected it?
 
Astronomy news on Phys.org
The concept of empty space would require a space devoid of matter, energy, or, more importantly fields. Gravity permeates the entire universe, so, the concept of space without the presence of a gravitational field is invalid.
 
  • Like
Likes 1 person
vivekfw66 said:
Is there in reality empty space where there is no energy or matter? or has anyone seen or detected it?
This is not really a question that science can answer.

AM
 
Detecting the absence of things is lots harder than detecting the presence of things.

It's a commonly asked question though. I see it here about once a month. Usually folks ask about regions with no matter, I think because they already get that, as Chronos pointed out, there isn't anywhere without fields.
 
EM radiation permeates space just as well as gravity does. So there is definitely no such thing as space without energy.
 
The OP has been answered. Now we are just inviting speculation.
 
TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
Thread 'Could gamma-ray bursts have an intragalactic origin?'
This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...

Similar threads

Back
Top