Question: When I see a star that is, let’s say, 10 light years away; can I say that what…
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How Do We Define Distance to a Star That is Currently 10 Billion Light Years From us in an Expanding Universe?
Question: It is said that light traveling from a star that is currently 10 billion light years from us…
Do Light Waves Get Stretched to Straight Lines By Moving Objects?
Question: Does light wave disintegrates(i.e. its crest and troughs vanishes leaving a straight line) when it travels unhindered and…
What Does the Expansion of the Universe Look Like from an Galaxy on the Edge of the Known Universe?
Question: If you were to project yourself instantly to the edge of the known universe, (knowing that the universe…
Can Atoms Travel Between Planets or Galaxies?
Question: To start, I know very little about what I am going to ask, so much of my question…
How Old is the Light from the Stars that we see in the Night Sky?
Question: One of the questions that always has remained unanswered to me is the following. When we see the…