The Milky Way is just a particle of dust in the universe, and the universe is too big for us to imagine!
This picture is a photo of the Earth taken from a distance of 6.4 billion kilometers, which shows that the Earth is very small...
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One-third of the common planets in the Milky Way may be located in the habitable zone
Science and Technology Daily News (Reporter Liu Xia) - American astronomers reported in a paper published in the Proceedings of the National Academy of Sciences on May 29th that in an analysis based on the latest telescope data, they found that one-third of the most common planets in the Milky Way may be located in orbits close enough to their main star and at a comfortable temperature, which may contain liquid water and thus potentially harbor life.Sarah Ballard, a professor of astronomy at the University of Florida and the latest research leader, explained that the sun is relatively rare in the Milky Way...
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