Is energy in vacuum real? How do we know that this energy that can be borrowed and returned immediately is real if virtual particles didn't exist then?
Are vacuum fluctuations energy in vacuum? Are these virtual particles? How do we know there's this energy if they didn't exist? Do they really exist?
What is a virtual particle? Does negative energy exist? If so, what is it? What kind of organism could exist in the vacuum of space? Do bacteria exist in space? What is meant by true vacuum and false vacuum? What is space if not a vacuum? What is meant by false vacuum? If we are in space and space is a vacuum, why aren't we also in a vacuum? Is the vacuum of space filled with dark matter? What does "space is a vacuum" mean? Is 'empty' space filled with massive particles which are displaced by the particles of matter which exist in it and move through it? How do noble gases exist in air? Does dark matter really exist? What are some of the current theories for which particle makes up dark matter? Will Virtual Physics be the physics of the future? Is the existence of dark matter and dark energy confirmed or just theoretical? How electron, positron and gamma photon created from vacuum? How ideal is a space vacuum? Can an infinite amount of dark or vacuum or gravitational energy be created with expansion? How do we know that dark matter exists? Vacuumed sucked space is considered nothing. Is nothing considered to be present when nothing exists? Or was it considerd to be expanded empty space? How many particles have we discovered? What are the chances that elements we don't know of exist on other planets or in other galaxies? Could there be animals in the vacuum of space? Are subatomic particles visible? How are electron, positron and gamma photon created from a vacuum? What are dark matter and dark energy and do they make the empty space? How many elementary particles are there in the universe? Are dark matter and dark energy: energy? What is dark energy in space?