What is the Milky Way?

The Milky Way is a barred spiral galaxy, one in every of a whole lot of billions in the observable universe. It’s additionally our house.

Like different galaxies, the Milky Way is an remoted assortment of stars and different materials sure collectively by their widespread gravity. In addition to the 100 billion to 400 billion stars in our galaxy, a similar number of planets probably exist in the Milky Way — a few of them a part of photo voltaic programs and a few floating freely. Between the stars sit innumerable nebulas, that are clouds of fuel and mud. The overwhelming majority of the interstellar fuel is hydrogen and helium.

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