In space exploration, there are terms where researchers use in order to determine the distance of a star from earth. The two most common terms are astronomical unit, which is equivalent to approximately 150 million kilometers or the mean distance from earth to sun, and the other unit is light year, which is the distance of light travel by a year or 9.5*10^13 kilometers.
The video below shows how the distance of two stars between universe is measured. The video used only simple terms and people with no scientific background can also understand this. Give it a whirl.
The video below shows how the distance of two stars between universe is measured. The video used only simple terms and people with no scientific background can also understand this. Give it a whirl.
There might be several terms such as Parallax, Standard Candle or Doppler effect which you might want to Google in order to understand the video better. Kudos to whoever involves in creating this wonderful video.
Source: Here
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