How much of the solar system's mass is in the Sun?
The Sun contains about 99.8% of all the mass in our solar system.
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- What is the Local Group?
“The Milky Way is part of a group of galaxies called the Local Group.”
Reference: NASA
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How many stars are in the Milky Way?
The Milky Way contains an estimated 100 billion to 400 billion stars.
What shape is the Milky Way?
The Milky Way is a barred spiral galaxy.