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Astronomers once thought that the observable universe contained about 100 billion galaxies based on images from the Hubble telescope. The age of the galaxies was determined to be between 400 and 700 million years. Meanwhile, the observable universe is 13.8 billion years old.
On clear nights in some places on Earth, we can see a faint white band of light across the sky. Today, we know that this band of light is the main bright disk of our galaxy. Our galaxy is called the Milky Way, one of 100 billion galaxies in the universe, containing the solar system and the Earth. The Milky Way is not visible everywhere because its light is relatively low and easily affected by light pollution, the moon is too bright, or the sky is not dark enough to see.
And seeing the magical dome of light of the Milky Way rising above the horizon is one of the most amazing experiences in life. Here are some destinations where you can see the Milky Way with the naked eye.
Isfahan Province - Aran o Bidgol, Iran
Trillium Lake Dam, Government Camp - USA
Bishop - USA
Unterageri - Switzerland
Nanjizal Beach, St Just - UK
Mount Bromo - Indonesia
Mammoth Lakes - USA
Hahei - New Zealand
California - USA
On days when a cold front passes, the sky becomes clearest. You need to stand under the night sky for a while for your eyes to fully adjust to the darkness. After about 20 minutes, our eyes will perceive the faint light from the stars. What you will see will be a faint white streak of light, stretching in a very large arc from the south to the northeast horizon, looking closely like specks, like a cottony cloud.
