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 shape is the Milky Way?
“The Milky Way is a barred spiral galaxy.”
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 is the Local Group?
The Milky Way is part of a group of galaxies called the Local Group.