How many light years is the sun from the earth? How long does it take for the first ray of the sun to reach the earth? How many billion light-years are there in the Milky Way? How many billion years d

How many light years is the sun from the earth? How long does it take for the first ray of the sun to reach the earth? How many billion light-years are there in the Milky Way? How many billion years does the universe have now? land The sun is about10.50 billion kilometers away from the earth, which is about 8 minutes (the distance that light travels in 8 minutes). All the sunshine we saw came from the sun eight minutes ago. The diameter of the Milky Way is about 654.38+ million light years. If a beam of light propagates from one end of the Milky Way, it will take about 654.38 million+years. Hubble volume is about 65.438+04 billion light years, and the universe is about 30 billion light years in diameter. The universe was born about 30 billion years ago.