All About The Milky Way

All About The Milky Way

The Earth and the Solar System are located in the Milky Way.

The Milky Way is the name of our galaxy which contains all the stars you can see in the night sky, one of which is the Sun. Within the stars are enormous clouds of gas and dust which are the building blocks for new stars.

The Milky Way contains enough gas and dust to make a billion more stars.

The Milky Way also contains, comets, meteors, asteroids, and planets.

The Milky Way is held together by gravity.

While the Milky Way might look flat when seen from the side, it has a large bulge in the center. Within this, stars of different sizes, ages, and temperatures, travel around the middle of the galaxy in enormous sweeping bands called spiral arms.

The Milky ways shape is always changing, but very slowly.

Compared with other galaxies, our galaxy, the Milky Way is relatively large. It measures approximately 100,000 light years across.

There are four different types of galaxies. They are called spiral, barred- spiral, elliptical and irregular galaxies. The Milky Way is a barred spiral galaxy.

Although there are four different types of galaxies, they all contain the same elements, but they are arranged differently for each type.

In the early 1920’s, American Astronomer, Edwin Hubble confirmed for the first time the existence of galaxies beyond our own.

Like moons and planets, galaxies spin and move around in space.

Astronomers believe that a great big black hole lurks at the center of the Milky Way.

According to the general theory of relativity, the black hole is a region of space from which nothing can escape.

For our Solar System to go once around the Milky Way it would take 220 million years. According to this theory, the Solar System has only rotated once since the earliest dinosaurs graced our planet.

The Milky Way got its name from Greek astronomers who taught it looked like a puddle of spilled milk.

The center of the Milky Way is 30,000 light years away from Earth.

A light year is the distance light travels in one year. One light-year is about 6 trillion miles (6,000,000,000,000) or 9 trillion km.

When you go outside late at night and look up to the stars in the sky you are looking into our Galaxy, which is called the Milky Way.

The best time to see the Milky Way depends on where you live. If you live in the northern hemisphere, the best time to look is between the months of July and September. If you live in the southern hemisphere, the Milky Way is seen at its most spectacular between October and December.

The Milky Way is a barred spiral Galaxy. This means there is a band of stars stretching across the Galaxy, with lots of arms spiraling around it . We live in one of the small arms called, THE ORION ARM.

The Milky Way is shaped like a spiral, and it has been spinning since it was born out of huge swirling clouds of dust and gas, 13.8 billion years ago, in the Big Bang.

The Big Bang is a theory about how the universe started around 13.8 billion years ago. Scientists believe a Big Bang happened in a specific point in space, throwing out galaxies in all directions.

As Galaxies go, the Milky Way is a middleweight. It has anywhere between 100-400 billion stars, where as other larger galaxies can have as many as a trillion stars.

The areas of glowing pink, blue, and green gases in the Milky Way are called the nebulae, this is the region where new stars are formed.

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