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binbots
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If galaxies aer expanding fast than the speed of light how are we able to see them. At the moment this expansion surpassed the speed of light shouldn't these galaxies dissappear or remain unchanged visually?
binbots said:If galaxies aer expanding fast than the speed of light how are we able to see them. At the moment this expansion surpassed the speed of light shouldn't these galaxies disappear or remain unchanged visually?
The speed of light is a fundamental constant in physics, denoted by the symbol "c". In a vacuum, it has a fixed value of approximately 299,792,458 meters per second (m/s).
The speed of light is a crucial factor in understanding the size and age of the universe. It is the fastest possible speed in the universe and plays a role in the concept of time dilation, which affects how we perceive time in different areas of the universe.
The expansion of the universe refers to the continuous growth of the space between galaxies. This expansion has been observed by scientists and is thought to be accelerating. The speed of light is a limiting factor in how far we can see into the expanding universe, as light can only travel a certain distance in a given amount of time.
The Big Bang theory proposes that the universe began as a singularity and has been expanding ever since. The speed of light plays a crucial role in this theory, as it is thought that in the early stages of the universe, the expansion was so rapid that light could not keep up, leading to the formation of the observable universe we see today.
According to our current understanding of physics, the speed of light is the maximum speed at which anything can travel in the universe. It is considered a fundamental constant and has been consistently observed and measured to be the same in all frames of reference. However, there are ongoing scientific research and theories exploring the possibility of faster-than-light travel, but it remains a mystery and a subject of debate.