Question

 galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. ... This is the picture taken by the Hubble Space Telescope showing thousands of galaxi​

Answer 1

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We live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy.

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle.

a diagram that shows that a planet is part of a solar system, and the solar system is part of a galaxy

When you look up at stars in the night sky, you’re seeing other stars in the Milky Way. If it’s really dark, far away from lights from cities and houses, you can even see the dusty bands of the Milky Way stretch across the sky.

a photo of the Milky Way seen from a dark desert. The dusty colors light up the sky.

The Milky Way Galaxy stretches across the sky at the Trona Pinnacles National Landmark in California. Photo by Ian Norman.

There are many galaxies besides ours, though. There are so many, we can’t even count them all yet! The Hubble Space Telescope looked at a small patch of space for 12 days and found 10,000 galaxies, of all sizes, shapes, and colors. Some scientists think there could be as many as one hundred billion galaxies in the universe.

Answer 2

Answer:

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. ... A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity

Step-by-step explanation:

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