• Question: is a galaxy same as planets?

    Asked by jessicaspiderrcool to Jillian on 18 Jun 2015.
    • Photo: Jillian Scudder

      Jillian Scudder answered on 18 Jun 2015:

      A galaxy is on a much bigger scale than the planets! The planets are small objects orbiting a star, with very little gas and dust floating between the planets, and there’s a solar wind from the star in the center that surrounds the planets.

      A galaxy is a huge disk of billions of stars (and their planets) and gas and dust, all orbiting a central black hole, which is many tens of thousands of times larger than any given star.

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